add calculator-react

2020-06-08 18:18:42 -07:00 · 2020-06-08 18:18:42 -07:00 · 36f827027c
parent 09f76acd55
commit 36f827027c
51 changed files with 16598 additions and 0 deletions
--- a/calculator-react/.gitignore
+++ b/calculator-react/.gitignore
@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
--- a/calculator-react/README.md
+++ b/calculator-react/README.md
@ -0,0 +1,80 @@
+### Calculator-React Project Links
+
+* [GitHub Page View of this Repo](https://trentspalmer.github.io/fcc-challenges)
+* [GitHub Page View of this Project (drum-machine-react)](https://trentspalmer.github.io/fcc-challenges/calculator-react/build)
+
+### FreeCodeCamp Links
+
+* [FreeCodeCamp Instruction for This Project](https://www.freecodecamp.org/learn/front-end-libraries/front-end-libraries-projects/build-a-javascript-calculator)
+* [FreeCodeCamp Section](https://www.freecodecamp.org/learn/front-end-libraries/front-end-libraries-projects)
+
+---
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the app in the development mode.<br />
+Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
+
+The page will reload if you make edits.<br />
+You will also see any lint errors in the console.
+
+### `npm test`
+
+Launches the test runner in the interactive watch mode.<br />
+See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
+
+### `npm run build`
+
+Builds the app for production to the `build` folder.<br />
+It correctly bundles React in production mode and optimizes the build for the best performance.
+
+The build is minified and the filenames include the hashes.<br />
+Your app is ready to be deployed!
+
+See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
+
+### `npm run eject`
+
+**Note: this is a one-way operation. Once you `eject`, you can’t go back!**
+
+If you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
+
+Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
+
+You don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
+
+## Learn More
+
+You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
+
+To learn React, check out the [React documentation](https://reactjs.org/).
+
+### Code Splitting
+
+This section has moved here: https://facebook.github.io/create-react-app/docs/code-splitting
+
+### Analyzing the Bundle Size
+
+This section has moved here: https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size
+
+### Making a Progressive Web App
+
+This section has moved here: https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app
+
+### Advanced Configuration
+
+This section has moved here: https://facebook.github.io/create-react-app/docs/advanced-configuration
+
+### Deployment
+
+This section has moved here: https://facebook.github.io/create-react-app/docs/deployment
+
+### `npm run build` fails to minify
+
+This section has moved here: https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify
--- a/calculator-react/package-lock.json
+++ b/calculator-react/package-lock.json
--- a/calculator-react/package.json
+++ b/calculator-react/package.json
@ -0,0 +1,40 @@
+{
+  "name": "calculator-react",
+  "version": "0.1.0",
+  "private": true,
+  "homepage": "https://trentspalmer.github.io/fcc-challenges/calculator-react/build",
+  "dependencies": {
+    "@fortawesome/fontawesome-svg-core": "^1.2.28",
+    "@fortawesome/free-solid-svg-icons": "^5.13.0",
+    "@fortawesome/react-fontawesome": "^0.1.10",
+    "@testing-library/jest-dom": "^4.2.4",
+    "@testing-library/react": "^9.5.0",
+    "@testing-library/user-event": "^7.2.1",
+    "react": "^16.13.1",
+    "react-dom": "^16.13.1",
+    "react-redux": "^7.2.0",
+    "react-scripts": "3.4.1",
+    "redux": "^4.0.5"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": "react-app"
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}
--- a/calculator-react/public/index.html
+++ b/calculator-react/public/index.html
@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="#" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <link rel="stylesheet" href="//fonts.googleapis.com/css?family=Baloo+Bhai" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>
+      Calculator React - Build a Calculator - Front End Libraries Projects
+    </title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root">
+      <div>
+        <script src="https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js"></script>
+      </div>
+    </div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>
--- a/calculator-react/public/manifest.json
+++ b/calculator-react/public/manifest.json
@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}
--- a/calculator-react/public/robots.txt
+++ b/calculator-react/public/robots.txt
@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:
--- a/calculator-react/src/Add.js
+++ b/calculator-react/src/Add.js
@ -0,0 +1,78 @@
+import React from 'react';
+import { connect } from "react-redux";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import { faPlus } from "@fortawesome/free-solid-svg-icons";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Add extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.fourthColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'+');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.fourthColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 5,
+      gridColumnEnd: 6,
+      gridRowStart: 4,
+      gridRowEnd: 5,
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'row',
+      justifyContent: 'center',
+      alignItems: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridColumnStart'] = 4;
+      style['gridColumnEnd'] = 5;
+      style['borderRight'] = 'unset';
+      style['borderBottom'] = '3px solid black';
+    }
+
+    return (
+      <div id="add" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>
+        <FontAwesomeIcon icon={faPlus}/>
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Add);
--- a/calculator-react/src/App.css
+++ b/calculator-react/src/App.css
@ -0,0 +1,3 @@
+.App {
+  text-align: center;
+}
--- a/calculator-react/src/App.js
+++ b/calculator-react/src/App.js
@ -0,0 +1,94 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import Calculator from './Calculator';
+import { colors } from './globals'
+
+import { innerWindowWidthAction } from "./actions/innerWindowWidthAction";
+import { innerWindowHeightAction } from "./actions/innerWindowHeightAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  innerWindowWidthAction: (windowInnerWidth) => dispatch(innerWindowWidthAction(windowInnerWidth)),
+  innerWindowHeightAction: (windowInnerHeight) => dispatch(innerWindowHeightAction(windowInnerHeight)),
+});
+
+class App extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleResize = this.handleResize.bind(this);
+  };
+
+  handleResize() {
+    this.props.innerWindowWidthAction(window.innerWidth);
+    this.props.innerWindowHeightAction(window.innerHeight);
+  };
+
+  componentDidMount() {
+    window.addEventListener('resize',this.handleResize);
+  };
+
+  componentWillUnmount() {
+    window.removeEventListener('resize',this.handleResize);
+  };
+
+  render() {
+    const height = this.props.innerWindowHeight;
+    const width = this.props.innerWindowWidth;
+    const gitHubLabelStyle = {
+      backgroundColor: colors.firstColor,
+      border: 'none',
+      width: 149,
+      height: 0,
+      position: 'absolute',
+      right: 0,
+    };
+
+    const attachmentStyle = {
+      position: 'absolute',
+      right: 0,
+      height: 149,
+      width: 149,
+    };
+
+    const style = {
+      textAlign: 'center',
+      backgroundColor: colors.firstColor,
+      height: '100vh',
+      width: '100vw',
+      display: 'flex',
+      color: colors.textColor,
+      overFlow: 'hidden',
+    };
+
+    if (width > height && height < 400) {
+      gitHubLabelStyle['width'] = 99;
+      attachmentStyle['width'] = 99;
+      attachmentStyle['height'] = 99;
+    } else if (height > width) {
+      gitHubLabelStyle['width'] = 99;
+      attachmentStyle['width'] = 99;
+      attachmentStyle['height'] = 99;
+    }
+
+    return (
+      <div style={style}>
+      <a href="https://github.com/TrentSPalmer/fcc-challenges/tree/gh-pages/calculator-react"
+        style={gitHubLabelStyle}
+        target="_blank" rel="noopener noreferrer">
+      <img
+        src="https://github.blog/wp-content/uploads/2008/12/forkme_right_white_ffffff.png?resize=149%2C149"
+        className="size-full"
+        style={attachmentStyle}
+        alt="Fork me on GitHub"
+        data-recalc-dims="1">
+      </img>
+      </a>
+      <Calculator />
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(App);
--- a/calculator-react/src/App.test.js
+++ b/calculator-react/src/App.test.js
@ -0,0 +1,9 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  const { getByText } = render(<App />);
+  const linkElement = getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});
--- a/calculator-react/src/Back.js
+++ b/calculator-react/src/Back.js
@ -0,0 +1,79 @@
+import React from 'react';
+import { connect } from "react-redux";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import { faBackspace } from "@fortawesome/free-solid-svg-icons";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Back extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.fourthColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'b');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.fourthColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 6,
+      gridColumnEnd: 7,
+      gridRowStart: 3,
+      gridRowEnd: 4,
+      borderBottom: '3px solid black',
+      display: 'flex',
+      flexDirection: 'row',
+      justifyContent: 'center',
+      alignItems: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 2;
+      style['gridRowEnd'] = 3;
+      style['gridColumnStart'] = 2;
+      style['gridColumnEnd'] = 3;
+      style['borderRight'] = '3px solid black';
+    }
+
+    return (
+      <div id="subtract" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>
+        <FontAwesomeIcon icon={faBackspace}/>
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Back);
--- a/calculator-react/src/Calculator.js
+++ b/calculator-react/src/Calculator.js
@ -0,0 +1,104 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import CalculatorGrid from './CalculatorGrid';
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Calculator extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleKeyPress = this.handleKeyPress.bind(this);
+    this.handleKey= this.handleKey.bind(this);
+  };
+
+  handleKey(key) {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,key);
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleKeyPress(e) {
+    if (e.keyCode === 8 || e.keyCode === 46) {
+      this.handleKey('b');
+    } else if (['0','1','2','3','4','5','6','7','8','9','.','*','+','-','='].includes(e.key)) {
+      this.handleKey(e.key);
+    } else if (e.key === '/') {
+      e.preventDefault();
+      this.handleKey(e.key);
+    } else if (e.keyCode === 13) {
+      this.handleKey('=');
+    } else if (e.keyCode === 27) {
+      this.props.inputStringAction('');
+      this.props.operationStringAction('');
+    }
+  };
+
+  componentDidMount() {
+    document.addEventListener("keydown", this.handleKeyPress, false);
+  };
+
+  componentWillUnmount() {
+    document.removeEventListener("keydown", this.handleKeyPress, false);
+  };
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const topMargin = Math.round(height * 0.1);
+    const sideMargin = Math.round(width * 0.1);
+    const style = {
+      height: '80%',
+      width: '80%',
+      backgroundColor: colors.secondColor,
+      borderRadius: 10,
+      marginTop: topMargin,
+      marginBottom: topMargin,
+      marginLeft: sideMargin,
+      marginRight: sideMargin,
+      overFlow: 'hidden',
+      border: '3px solid black',
+      userSelect: 'none',
+      MozUserSelect: 'none',
+      WebkitUserSelect: 'none',
+      zIndex: '1',
+      fontFamily: 'Baloo Bhai',
+    };
+
+    if (width > height && height < 400) {
+      style['height'] = '96vh';
+      style['width'] = '80vw';
+      style['marginTop'] = '1vh';
+      style['marginBottom'] = '3vh';
+      style['marginLeft'] = '89px';
+      style['marginRight'] = '89px';
+    } else if (height > width) {
+      style['height'] = '75vh';
+      style['width'] = '100vw';
+      style['marginTop'] = '12vh';
+      style['marginBottom'] = 'unset';
+      style['marginLeft'] = '0px';
+      style['marginRight'] = '0px';
+    }
+
+    return (
+      <div id="Calculator" style={style}>
+        <CalculatorGrid />
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Calculator);
--- a/calculator-react/src/CalculatorGrid.js
+++ b/calculator-react/src/CalculatorGrid.js
@ -0,0 +1,72 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import Seven from './Seven';
+import Eight from './Eight';
+import Nine from './Nine';
+import Four from './Four';
+import Five from './Five';
+import Six from './Six';
+import One from './One';
+import Two from './Two';
+import Three from './Three';
+import Zero from './Zero';
+import Decimal from './Decimal';
+import Clear from './Clear';
+import Divide from './Divide';
+import Multiply from './Multiply';
+import Subtract from './Subtract';
+import Add from './Add';
+import Equals from './Equals';
+import Display from './Display';
+import Back from './Back';
+const mapStateToProps = (state) => ({ ...state });
+
+class CalculatorGrid extends React.Component {
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      display: 'grid',
+      width: '100%',
+      height: '100%',
+      gridTemplateRows: 'repeat(4, 1fr)',
+      gridTemplateColumns: 'repeat(6, 1fr)',
+      fontSize: 64,
+    };
+
+    if (width > height && height < 400) {
+      style['fontSize'] = 48;
+    } else if (height > width) {
+      style['gridTemplateRows'] = 'repeat(6, 1fr)';
+      style['gridTemplateColumns'] = 'repeat(4, 1fr)';
+      style['fontSize'] = 48;
+    }
+
+    return (
+      <div id="CalculatorGrid" style={style}>
+        <Seven />
+        <Eight />
+        <Nine />
+        <Four />
+        <Five />
+        <Six />
+        <One />
+        <Two />
+        <Three />
+        <Zero />
+        <Decimal />
+        <Clear />
+        <Divide />
+        <Multiply />
+        <Subtract />
+        <Add />
+        <Equals />
+        <Display />
+        <Back />
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps)(CalculatorGrid);
--- a/calculator-react/src/Clear.js
+++ b/calculator-react/src/Clear.js
@ -0,0 +1,60 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Clear extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.fifthColor,
+    };
+  };
+
+  handleClick() {
+    this.props.inputStringAction('');
+    this.props.operationStringAction('');
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.secondColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.fifthColor});
+    }
+  }
+
+  render() {
+    const style = {
+      gridColumnStart: 1,
+      gridColumnEnd: 2,
+      gridRowStart: 2,
+      gridRowEnd: 3,
+      borderRight: '3px solid black',
+      borderBottom: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor, 
+    };
+
+    return (
+      <div id="clear" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>AC</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Clear);
--- a/calculator-react/src/Decimal.js
+++ b/calculator-react/src/Decimal.js
@ -0,0 +1,75 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Decimal extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'.');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 1,
+      gridColumnEnd: 2,
+      gridRowStart: 3,
+      gridRowEnd: 4,
+      borderRight: '3px solid black',
+      borderBottom: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 6;
+      style['gridRowEnd'] = 7;
+      style['gridColumnStart'] = 3;
+      style['gridColumnEnd'] = 4;
+      style['borderBottom'] = 'unset';
+    }
+
+    return (
+      <div id="decimal" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>.</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Decimal);
--- a/calculator-react/src/Display.js
+++ b/calculator-react/src/Display.js
@ -0,0 +1,40 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors } from './globals'
+import DisplayInput from './DisplayInput';
+import DisplayOperations from './DisplayOperations';
+const mapStateToProps = (state) => ({ ...state });
+
+class Display extends React.Component {
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 1,
+      gridColumnEnd: 7,
+      gridRowStart: 1,
+      gridRowEnd: 2,
+      borderBottom: '3px solid black',
+      backgroundColor: colors.textColor,
+      borderRadius: '7px 7px 0 0',
+      color: colors.firstColor,
+      textOverflow: 'clip',
+      whiteSpace: 'nowrap',
+      overflow: 'hidden',
+    };
+
+    if (height > width) {
+      style['gridColumnEnd'] = 5;
+    }
+
+    return (
+      <div style={style}>
+        <DisplayOperations />
+        <DisplayInput />
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps)(Display);
--- a/calculator-react/src/DisplayInput.js
+++ b/calculator-react/src/DisplayInput.js
@ -0,0 +1,34 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+const mapStateToProps = (state) => ({ ...state });
+
+class DisplayInput extends React.Component {
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      textAlign: 'right',
+      height: '60%',
+      fontSize: 64,
+      lineHeight: '100%',
+    };
+
+    if (width > height && height < 400) {
+      style['fontSize'] = 36;
+    } else if (height > width && height < 850) {
+      style['fontSize'] = 36;
+    }
+
+    return (
+      <div id="display" style={style}>{
+        this.props.inputString.length === 0 ? 0 : this.props.inputString
+      }</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps)(DisplayInput);
--- a/calculator-react/src/DisplayOperations.js
+++ b/calculator-react/src/DisplayOperations.js
@ -0,0 +1,36 @@
+import React from 'react';
+import { connect } from "react-redux";
+import { colors } from './globals'
+
+const mapStateToProps = (state) => ({ ...state });
+
+class DisplayOperations extends React.Component {
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      textAlign: 'right',
+      height: '40%',
+      fontSize: 48,
+      lineHeight: '100%',
+      color: colors.secondtextColor,
+    };
+
+    if (width > height && height < 400) {
+      style['fontSize'] = 27;
+    } else if (height > width && height < 850) {
+      style['fontSize'] = 27;
+    }
+
+    return (
+      <div id="displayOperations" style={style}>{
+        this.props.operationString.length === 0 ? 0 : this.props.operationString
+      }</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps)(DisplayOperations);
--- a/calculator-react/src/Divide.js
+++ b/calculator-react/src/Divide.js
@ -0,0 +1,77 @@
+import React from 'react';
+import { connect } from "react-redux";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import { faDivide } from "@fortawesome/free-solid-svg-icons";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Divide extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.fourthColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'/');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.fourthColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 5,
+      gridColumnEnd: 6,
+      gridRowStart: 2,
+      gridRowEnd: 3,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'row',
+      justifyContent: 'center',
+      alignItems: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridColumnStart'] = 3;
+      style['gridColumnEnd'] = 4;
+    }
+
+    return (
+      <div id="divide" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>
+        <FontAwesomeIcon icon={faDivide}/>
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Divide);
--- a/calculator-react/src/Eight.js
+++ b/calculator-react/src/Eight.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Eight extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'8');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 3,
+      gridColumnEnd: 4,
+      gridRowStart: 2,
+      gridRowEnd: 3,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 3;
+      style['gridRowEnd'] = 4;
+      style['gridColumnStart'] = 2;
+      style['gridColumnEnd'] = 3;
+    }
+
+    return (
+      <div id="eight" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>8</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Eight);
--- a/calculator-react/src/Equals.js
+++ b/calculator-react/src/Equals.js
@ -0,0 +1,77 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Equals extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.thirdColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'=');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.thirdColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 6,
+      gridColumnEnd: 7,
+      gridRowStart: 4,
+      gridRowEnd: 5,
+      display: 'flex',
+      flexDirection: 'row',
+      justifyContent: 'center',
+      alignItems: 'center',
+      backgroundColor: this.state.backgroundColor,
+      borderRadius: '0 0 7px 0',
+      fontSize: 88,
+    };
+
+    if (width > height && height < 400) {
+      style['fontSize'] = 56;
+    } else if (height > width) {
+      style['gridColumnStart'] = 4;
+      style['gridColumnEnd'] = 5;
+      style['gridRowStart'] = 5;
+      style['gridRowEnd'] = 7;
+    }
+
+    return (
+      <div id="equals" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>=</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Equals);
--- a/calculator-react/src/Five.js
+++ b/calculator-react/src/Five.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Five extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'5');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 3,
+      gridColumnEnd: 4,
+      gridRowStart: 3,
+      gridRowEnd: 4,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 4;
+      style['gridRowEnd'] = 5;
+      style['gridColumnStart'] = 2;
+      style['gridColumnEnd'] = 3;
+    }
+
+    return (
+      <div id="five" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>5</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Five);
--- a/calculator-react/src/Four.js
+++ b/calculator-react/src/Four.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Four extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'4');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 2,
+      gridColumnEnd: 3,
+      gridRowStart: 3,
+      gridRowEnd: 4,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 4;
+      style['gridRowEnd'] = 5;
+      style['gridColumnStart'] = 1;
+      style['gridColumnEnd'] = 2;
+    }
+
+    return (
+      <div id="four" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>4</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Four);
--- a/calculator-react/src/Multiply.js
+++ b/calculator-react/src/Multiply.js
@ -0,0 +1,76 @@
+import React from 'react';
+import { connect } from "react-redux";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import { faTimes } from "@fortawesome/free-solid-svg-icons";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Multiply extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.fourthColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'*');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.fourthColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 6,
+      gridColumnEnd: 7,
+      gridRowStart: 2,
+      gridRowEnd: 3,
+      borderBottom: '3px solid black',
+      display: 'flex',
+      flexDirection: 'row',
+      justifyContent: 'center',
+      alignItems: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridColumnStart'] = 4;
+      style['gridColumnEnd'] = 5;
+    }
+
+    return (
+      <div id="multiply" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>
+        <FontAwesomeIcon icon={faTimes}/>
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Multiply);
--- a/calculator-react/src/Nine.js
+++ b/calculator-react/src/Nine.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Nine extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'9');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 4,
+      gridColumnEnd: 5,
+      gridRowStart: 2,
+      gridRowEnd: 3,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 3;
+      style['gridRowEnd'] = 4;
+      style['gridColumnStart'] = 3;
+      style['gridColumnEnd'] = 4;
+    }
+
+    return (
+      <div id="nine" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>9</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Nine);
--- a/calculator-react/src/One.js
+++ b/calculator-react/src/One.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class One extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'1');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 2,
+      gridColumnEnd: 3,
+      gridRowStart: 4,
+      gridRowEnd: 5,
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 5;
+      style['gridRowEnd'] = 6;
+      style['borderBottom'] = '3px solid black';
+      style['gridColumnStart'] = 1;
+      style['gridColumnEnd'] = 2;
+    }
+
+    return (
+      <div id="one" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>1</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(One);
--- a/calculator-react/src/Plus.js
+++ b/calculator-react/src/Plus.js
@ -0,0 +1,34 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+const mapStateToProps = (state) => ({ ...state });
+
+class Minus extends React.Component {
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 5,
+      gridColumnEnd: 6,
+      gridRowStart: 3,
+      gridRowEnd: 4,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+    };
+
+    if (height > width) {
+      style['gridColumnStart'] = 4;
+      style['gridColumnEnd'] = 5;
+      style['borderRight'] = 'unset';
+    }
+
+    return (
+      <div id="minus" style={style}>-</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps)(Minus);
--- a/calculator-react/src/Seven.js
+++ b/calculator-react/src/Seven.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Seven extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'7');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 2,
+      gridColumnEnd: 3,
+      gridRowStart: 2,
+      gridRowEnd: 3,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 3;
+      style['gridRowEnd'] = 4;
+      style['gridColumnStart'] = 1;
+      style['gridColumnEnd'] = 2;
+    }
+
+    return (
+      <div id="seven" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>7</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Seven);
--- a/calculator-react/src/Six.js
+++ b/calculator-react/src/Six.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Six extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'6');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 4,
+      gridColumnEnd: 5,
+      gridRowStart: 3,
+      gridRowEnd: 4,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 4;
+      style['gridRowEnd'] = 5;
+      style['gridColumnStart'] = 3;
+      style['gridColumnEnd'] = 4;
+    }
+
+    return (
+      <div id="six" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>6</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Six);
--- a/calculator-react/src/Subtract.js
+++ b/calculator-react/src/Subtract.js
@ -0,0 +1,78 @@
+import React from 'react';
+import { connect } from "react-redux";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import { faMinus } from "@fortawesome/free-solid-svg-icons";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Subtract extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.fourthColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'-');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.fourthColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 5,
+      gridColumnEnd: 6,
+      gridRowStart: 3,
+      gridRowEnd: 4,
+      borderBottom: '3px solid black',
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'row',
+      justifyContent: 'center',
+      alignItems: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridColumnStart'] = 4;
+      style['gridColumnEnd'] = 5;
+      style['borderRight'] = 'unset';
+    }
+
+    return (
+      <div id="subtract" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>
+        <FontAwesomeIcon icon={faMinus}/>
+      </div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Subtract);
--- a/calculator-react/src/Three.js
+++ b/calculator-react/src/Three.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Three extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'3');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 4,
+      gridColumnEnd: 5,
+      gridRowStart: 4,
+      gridRowEnd: 5,
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 5;
+      style['gridRowEnd'] = 6;
+      style['borderBottom'] = '3px solid black';
+      style['gridColumnStart'] = 3;
+      style['gridColumnEnd'] = 4;
+    }
+
+    return (
+      <div id="three" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>3</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Three);
--- a/calculator-react/src/Two.js
+++ b/calculator-react/src/Two.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Two extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'2');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 3,
+      gridColumnEnd: 4,
+      gridRowStart: 4,
+      gridRowEnd: 5,
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 5;
+      style['gridRowEnd'] = 6;
+      style['borderBottom'] = '3px solid black';
+      style['gridColumnStart'] = 2;
+      style['gridColumnEnd'] = 3;
+    }
+
+    return (
+      <div id="two" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>2</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Two);
--- a/calculator-react/src/Zero.js
+++ b/calculator-react/src/Zero.js
@ -0,0 +1,74 @@
+import React from 'react';
+import { connect } from "react-redux";
+
+import { colors,makeInputAndOperationsStrings } from './globals'
+import { inputStringAction } from "./actions/inputStringAction";
+import { operationStringAction } from "./actions/operationStringAction";
+
+const mapStateToProps = (state) => ({ ...state });
+
+const mapDispatchToProps = (dispatch) => ({
+  inputStringAction: (inputString) => dispatch(inputStringAction(inputString)),
+  operationStringAction: (operationString) => dispatch(operationStringAction(operationString)),
+});
+
+class Zero extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.handleMouseEvent = this.handleMouseEvent.bind(this);
+    this.state = {
+      backgroundColor: colors.secondColor,
+    };
+  };
+
+  handleClick() {
+    const [inputString,operationString] = makeInputAndOperationsStrings(this.props.inputString,this.props.operationString,'0');
+    if (inputString !== this.props.inputString) {
+      this.props.inputStringAction(inputString);
+    }
+    if (operationString !== this.props.operationString) {
+      this.props.operationStringAction(operationString);
+    }
+  }
+
+  handleMouseEvent(e) {
+    if (e.type === 'mousedown' || e.type === 'touchstart') {
+      this.setState({backgroundColor: colors.firstColor});
+    } else if (e.type === 'mouseup' || e.type === 'touchend') {
+      this.setState({backgroundColor: colors.secondColor});
+    }
+  }
+
+  render() {
+    const width = this.props.innerWindowWidth;
+    const height = this.props.innerWindowHeight;
+    const style = {
+      gridColumnStart: 1,
+      gridColumnEnd: 2,
+      gridRowStart: 4,
+      gridRowEnd: 5,
+      borderRight: '3px solid black',
+      display: 'flex',
+      flexDirection: 'column',
+      justifyContent: 'center',
+      borderRadius: '0 0 0 7px',
+      backgroundColor: this.state.backgroundColor,
+    };
+
+    if (height > width) {
+      style['gridRowStart'] = 6;
+      style['gridRowEnd'] = 7;
+      style['gridColumnStart'] = 1;
+      style['gridColumnEnd'] = 3;
+    }
+
+    return (
+      <div id="zero" style={style} className='clickable' onClick={this.handleClick}
+        onTouchStart={this.handleMouseEvent} onTouchEnd={this.handleMouseEvent}
+        onMouseDown={this.handleMouseEvent} onMouseUp={this.handleMouseEvent}>0</div>
+    );
+  };
+};
+
+export default connect(mapStateToProps, mapDispatchToProps)(Zero);
--- a/calculator-react/src/actions/innerWindowHeightAction.js
+++ b/calculator-react/src/actions/innerWindowHeightAction.js
@ -0,0 +1,8 @@
+export const SETWINDOWINNERHEIGHT = "SETWINDOWINNERHEIGHT";
+
+export const innerWindowHeightAction = (windowInnerHeight) => {
+  return {
+    type: SETWINDOWINNERHEIGHT,
+    windowInnerHeight: windowInnerHeight,
+  };
+};
--- a/calculator-react/src/actions/innerWindowWidthAction.js
+++ b/calculator-react/src/actions/innerWindowWidthAction.js
@ -0,0 +1,8 @@
+export const SETWINDOWINNERWIDTH = "SETWINDOWINNERWIDTH";
+
+export const innerWindowWidthAction = (windowInnerWidth) => {
+  return {
+    type: SETWINDOWINNERWIDTH,
+    windowInnerWidth: windowInnerWidth,
+  };
+};
--- a/calculator-react/src/actions/inputStringAction.js
+++ b/calculator-react/src/actions/inputStringAction.js
@ -0,0 +1,8 @@
+export const SETINPUTSTRING = "SETINPUTSTRING";
+
+export const inputStringAction = (inputString) => {
+  return {
+    type: SETINPUTSTRING,
+    inputString: inputString,
+  };
+};
--- a/calculator-react/src/actions/operationStringAction.js
+++ b/calculator-react/src/actions/operationStringAction.js
@ -0,0 +1,8 @@
+export const SETOPERATIONSTRING = "SETOPERATIONSTRING";
+
+export const operationStringAction = (operationString) => {
+  return {
+    type: SETOPERATIONSTRING,
+    operationString: operationString,
+  };
+};
--- a/calculator-react/src/globals.js
+++ b/calculator-react/src/globals.js
@ -0,0 +1,253 @@
+export const colors = {
+  firstColor: '#00293C',
+  secondColor: '#1e656d',
+  thirdColor: '#6d261e',
+  fourthColor: '#656d1e',
+  fifthColor: '#261e6d',
+  textColor: '#f1f3ce',
+  secondtextColor: '#f62a00',
+};
+
+const operators = ['*','/','-','+'];
+
+export const makeInputAndOperationsStrings = (inputString,operationString,nextChar) => {
+  let inputStringResult = inputString;
+  let tempOperationString = operationString.includes('=') ? operationString.split('=')[1] : operationString;
+  let operationStringResult = tempOperationString;
+
+  if (tempOperationString.length > 0 && ['*','/','+','-','='].includes(nextChar) && tempOperationString.slice(-1) === '.') {
+    tempOperationString = tempOperationString.slice(0,-1);
+  }
+
+  const numbers = ['1','2','3','4','5','6','7','8','9'];
+
+  if (numbers.includes(nextChar)) {
+    if (inputString.length === 0) {
+      inputStringResult = nextChar;
+      operationStringResult = tempOperationString + nextChar;
+    } else if (inputString.length === 1) {
+      if (inputString[0] === '0') {
+        inputStringResult = nextChar;
+        operationStringResult = tempOperationString.slice(0,-1) + nextChar;
+      } else if (inputString[0] === '-') {
+        if (tempOperationString.length === 1) {
+          inputStringResult = inputString + nextChar;
+          operationStringResult = inputString + nextChar;
+        } else {
+          inputStringResult = inputString + nextChar;
+          operationStringResult = tempOperationString + nextChar;
+        }
+      } else if (['*','/','+'].includes(inputString[0])) {
+        inputStringResult = nextChar;
+        operationStringResult = tempOperationString + nextChar;
+      } else {
+        inputStringResult = inputString + nextChar;
+        operationStringResult = tempOperationString + nextChar;
+      }
+    } else if (inputString.length === 2) {
+      if (inputString[0] === '-') {
+        if (inputString[1] === '0') {
+          inputStringResult = '-' + nextChar;
+          operationStringResult = tempOperationString.slice(0,-1) + nextChar;
+        } else {
+          inputStringResult = inputString + nextChar;
+          operationStringResult = tempOperationString + nextChar;
+        }
+      } else {
+        inputStringResult = inputString + nextChar;
+        operationStringResult = tempOperationString + nextChar;
+      }
+    } else if (inputString.length > 2) {
+      inputStringResult = inputString + nextChar;
+      operationStringResult = tempOperationString + nextChar;
+    }
+  } else if (nextChar === '0') {
+    if (inputString.length === 0) {
+      inputStringResult = nextChar;
+      operationStringResult = tempOperationString + nextChar;
+    } else if (inputString.length === 1) {
+      if (inputString[0] !== '0') {
+        if (['*','/','+'].includes(inputString[0])) {
+          inputStringResult = nextChar;
+          operationStringResult = tempOperationString + nextChar;
+        } else {
+          inputStringResult = inputString + nextChar;
+          operationStringResult = tempOperationString + nextChar;
+        }
+      }
+    } else if (inputString.length === 2) {
+      if (inputString[0] !== '-') {
+        inputStringResult = inputString + nextChar;
+        operationStringResult = tempOperationString + nextChar;
+      } else if (inputString[1] !== '0') {
+        inputStringResult = inputString + nextChar;
+        operationStringResult = tempOperationString + nextChar;
+      }
+    } else if (inputString.length > 2) {
+        inputStringResult = inputString + nextChar;
+        operationStringResult = tempOperationString + nextChar;
+    }
+  } else if (nextChar === '-') {
+    if (tempOperationString.length === 0) {
+      inputStringResult = nextChar;
+      operationStringResult = nextChar;
+    } else if (tempOperationString.length === 1) {
+      if (!operators.includes(tempOperationString[0])) {
+        inputStringResult = nextChar;
+        operationStringResult =  tempOperationString + nextChar;
+      }
+    } else {
+      inputStringResult = nextChar;
+      operationStringResult =  tempOperationString + nextChar;
+    }
+  } else if (['*','/','+'].includes(nextChar)) {
+    if (tempOperationString.length === 1) {
+      if (!operators.includes(tempOperationString.slice(-1))) {
+        operationStringResult = tempOperationString + nextChar;
+        inputStringResult = nextChar;
+      }
+    } else if (tempOperationString.length > 1) {
+      inputStringResult = nextChar;
+      operationStringResult = tempOperationString + nextChar;
+    }
+  } else if (nextChar === '.' && (!inputString.includes('.'))) {
+    if (inputString.length === 0) {
+      inputStringResult = '0.';
+      operationStringResult = tempOperationString + '0.';
+    } else if (inputString.length === 1) {
+      if (tempOperationString.length === 0) {
+        if (inputString[0] === '-') {
+          inputStringResult = '-0.';
+          operationStringResult = tempOperationString + '-0.';
+        } else {
+          inputStringResult = inputString + nextChar;
+          operationStringResult = tempOperationString + nextChar;
+        }
+      } else {
+        if (operators.includes(inputString[0])) {
+          inputStringResult = '0.';
+          operationStringResult = tempOperationString + '0.';
+        } else {
+          inputStringResult = inputString + nextChar;
+          operationStringResult = tempOperationString + nextChar;
+        }
+      }
+    } else {
+      inputStringResult = inputString + nextChar;
+      operationStringResult = tempOperationString + nextChar;
+    }
+  } else if (nextChar === '=' && tempOperationString.length > 0) {
+    const lastOperationChar = tempOperationString.slice(-1);
+    if (operators.includes(lastOperationChar) || lastOperationChar === '.') {
+      inputStringResult = parseAndCalculate(tempOperationString.slice(0,-1));
+      operationStringResult = tempOperationString.slice(0,-1) + '=' + inputStringResult;
+    } else {
+      inputStringResult = parseAndCalculate(tempOperationString);
+      operationStringResult = tempOperationString + '=' + inputStringResult;
+    }
+  } else if (nextChar === 'b') {
+    if (tempOperationString.length === 1) {
+      inputStringResult = inputString.slice(0,-1);
+      operationStringResult = tempOperationString.slice(0,-1);
+    } else if (tempOperationString.length > 1) {
+      if (operators.includes(tempOperationString.slice(-1))) {
+        if (operators.includes(tempOperationString.slice(-2,-1))) {
+          inputStringResult = tempOperationString.slice(-2,-1);
+          operationStringResult = tempOperationString.slice(0,-1);
+        } else {
+          operationStringResult = tempOperationString.slice(0,-1);
+          inputStringResult = operationStringResult.split(/[-*/+]/).slice(-1)[0];
+        }
+      } else {
+        if (operators.includes(tempOperationString.slice(-2,-1))) {
+          inputStringResult = tempOperationString.slice(-2,-1);
+          operationStringResult = tempOperationString.slice(0,-1);
+        } else {
+          inputStringResult = inputString.slice(0,-1);
+          operationStringResult = tempOperationString.slice(0,-1);
+        }
+      }
+    }
+  }
+
+  return [inputStringResult,operationStringResult];
+}
+
+const parseAndCalculate = (operationString) => {
+  const statementArray = [];
+  operationString.split('').forEach((item,index) => {
+    if (index === 0) {
+      statementArray.push(item);
+    } else {
+      if (operators.includes(item)) {
+        statementArray.push(item);
+      } else {
+        if (statementArray[statementArray.length - 1] === '-') {
+          if (index === 1 || operators.includes(statementArray[statementArray.length - 2])) {
+            const previous = statementArray[statementArray.length - 1];
+            statementArray[statementArray.length - 1] = previous + item;
+          } else {
+            statementArray.push(item);
+          }
+        } else if (['*','/','+'].includes(statementArray[statementArray.length - 1])) {
+          statementArray.push(item);
+        } else {
+          const previous = statementArray[statementArray.length - 1];
+          statementArray[statementArray.length - 1] = previous + item;
+        }
+      }
+    }
+  });
+  // remove trailing operators
+  while (operators.includes(statementArray[statementArray.length - 1])) {
+    statementArray.pop();
+  }
+  const duplicateOperatorsFilteredArray = statementArray.filter((item,index) => {
+    return (!operators.includes(statementArray[index + 1]) || !operators.includes(item));
+  });
+  if (duplicateOperatorsFilteredArray.length === 1) {
+    return duplicateOperatorsFilteredArray[0];
+  } else {
+    return calculate(duplicateOperatorsFilteredArray.map(item => {
+      if (operators.includes(item)) {
+        return item;
+      } else {
+        return item.includes('.') ? parseFloat(item) : parseInt(item);
+      }
+    }))[0].toString();
+  }
+}
+
+const calculate = (statementArray) => {
+  if (statementArray.length === 1) {
+    return statementArray;
+  } else if (statementArray.includes('*')) {
+    const indexOfOperator = statementArray.indexOf('*');
+    return calculate([
+      ...statementArray.slice(0,indexOfOperator - 1),
+      statementArray[indexOfOperator - 1] * statementArray[indexOfOperator + 1],
+      ...statementArray.slice((indexOfOperator + 2),)
+    ]);
+  } else if (statementArray.includes('/')) {
+    const indexOfOperator = statementArray.indexOf('/');
+    return calculate([
+      ...statementArray.slice(0,indexOfOperator - 1),
+      statementArray[indexOfOperator - 1] / statementArray[indexOfOperator + 1],
+      ...statementArray.slice((indexOfOperator + 2),)
+    ]);
+  } else if (statementArray.includes('-')) {
+    const indexOfOperator = statementArray.indexOf('-');
+    return calculate([
+      ...statementArray.slice(0,indexOfOperator - 1),
+      statementArray[indexOfOperator - 1] - statementArray[indexOfOperator + 1],
+      ...statementArray.slice((indexOfOperator + 2),)
+    ]);
+  } else if (statementArray.includes('+')) {
+    const indexOfOperator = statementArray.indexOf('+');
+    return calculate([
+      ...statementArray.slice(0,indexOfOperator - 1),
+      statementArray[indexOfOperator - 1] + statementArray[indexOfOperator + 1],
+      ...statementArray.slice((indexOfOperator + 2),)
+    ]);
+  }
+}
--- a/calculator-react/src/index.css
+++ b/calculator-react/src/index.css
@ -0,0 +1,14 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  overflow: hidden;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}
--- a/calculator-react/src/index.js
+++ b/calculator-react/src/index.js
@ -0,0 +1,20 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import { Provider } from "react-redux";
+import store from "./store";
+
+import './index.css';
+import App from './App';
+import * as serviceWorker from './serviceWorker';
+
+ReactDOM.render(
+  <Provider store={store}>
+    <App />
+  </Provider>,
+  document.getElementById('root')
+);
+
+// If you want your app to work offline and load faster, you can change
+// unregister() to register() below. Note this comes with some pitfalls.
+// Learn more about service workers: https://bit.ly/CRA-PWA
+serviceWorker.unregister();
--- a/calculator-react/src/logo.svg
+++ b/calculator-react/src/logo.svg
@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
+    <g fill="#61DAFB">
+        <path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/>
+        <circle cx="420.9" cy="296.5" r="45.7"/>
+        <path d="M520.5 78.1z"/>
+    </g>
+</svg>
--- a/calculator-react/src/reducers/innerWindowHeightReducer.js
+++ b/calculator-react/src/reducers/innerWindowHeightReducer.js
@ -0,0 +1,14 @@
+import { SETWINDOWINNERHEIGHT } from "../actions/innerWindowHeightAction";
+
+export default (state, action) => {
+  if (!state) {
+    state = window.innerHeight;
+  }
+
+  switch (action.type) {
+    case SETWINDOWINNERHEIGHT:
+      return action.windowInnerHeight;
+    default:
+      return state;
+  }
+};
--- a/calculator-react/src/reducers/innerWindowWidthReducer.js
+++ b/calculator-react/src/reducers/innerWindowWidthReducer.js
@ -0,0 +1,14 @@
+import { SETWINDOWINNERWIDTH } from "../actions/innerWindowWidthAction";
+
+export default (state, action) => {
+  if (!state) {
+    state = window.innerWidth;
+  }
+
+  switch (action.type) {
+    case SETWINDOWINNERWIDTH:
+      return action.windowInnerWidth;
+    default:
+      return state;
+  };
+};
--- a/calculator-react/src/reducers/inputStringReducer.js
+++ b/calculator-react/src/reducers/inputStringReducer.js
@ -0,0 +1,14 @@
+import { SETINPUTSTRING } from "../actions/inputStringAction";
+
+export default (state, action) => {
+  if (!state) {
+    state = '';
+  }
+
+  switch (action.type) {
+    case SETINPUTSTRING:
+      return action.inputString;
+    default:
+      return state;
+  };
+};
--- a/calculator-react/src/reducers/operationStringReducer.js
+++ b/calculator-react/src/reducers/operationStringReducer.js
@ -0,0 +1,14 @@
+import { SETOPERATIONSTRING } from "../actions/operationStringAction";
+
+export default (state, action) => {
+  if (!state) {
+    state = '';
+  }
+
+  switch (action.type) {
+    case SETOPERATIONSTRING:
+      return action.operationString;
+    default:
+      return state;
+  };
+};
--- a/calculator-react/src/reducers/rootReducer.js
+++ b/calculator-react/src/reducers/rootReducer.js
@ -0,0 +1,12 @@
+import { combineReducers } from "redux";
+import innerWindowWidthReducer from "./innerWindowWidthReducer";
+import innerWindowHeightReducer from "./innerWindowHeightReducer";
+import inputStringReducer from "./inputStringReducer";
+import operationStringReducer from "./operationStringReducer";
+
+export default combineReducers({
+  innerWindowWidth: innerWindowWidthReducer,
+  innerWindowHeight: innerWindowHeightReducer,
+  inputString: inputStringReducer,
+  operationString: operationStringReducer,
+});
--- a/calculator-react/src/serviceWorker.js
+++ b/calculator-react/src/serviceWorker.js
@ -0,0 +1,141 @@
+// This optional code is used to register a service worker.
+// register() is not called by default.
+
+// This lets the app load faster on subsequent visits in production, and gives
+// it offline capabilities. However, it also means that developers (and users)
+// will only see deployed updates on subsequent visits to a page, after all the
+// existing tabs open on the page have been closed, since previously cached
+// resources are updated in the background.
+
+// To learn more about the benefits of this model and instructions on how to
+// opt-in, read https://bit.ly/CRA-PWA
+
+const isLocalhost = Boolean(
+  window.location.hostname === 'localhost' ||
+    // [::1] is the IPv6 localhost address.
+    window.location.hostname === '[::1]' ||
+    // 127.0.0.0/8 are considered localhost for IPv4.
+    window.location.hostname.match(
+      /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
+    )
+);
+
+export function register(config) {
+  if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
+    // The URL constructor is available in all browsers that support SW.
+    const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
+    if (publicUrl.origin !== window.location.origin) {
+      // Our service worker won't work if PUBLIC_URL is on a different origin
+      // from what our page is served on. This might happen if a CDN is used to
+      // serve assets; see https://github.com/facebook/create-react-app/issues/2374
+      return;
+    }
+
+    window.addEventListener('load', () => {
+      const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
+
+      if (isLocalhost) {
+        // This is running on localhost. Let's check if a service worker still exists or not.
+        checkValidServiceWorker(swUrl, config);
+
+        // Add some additional logging to localhost, pointing developers to the
+        // service worker/PWA documentation.
+        navigator.serviceWorker.ready.then(() => {
+          console.log(
+            'This web app is being served cache-first by a service ' +
+              'worker. To learn more, visit https://bit.ly/CRA-PWA'
+          );
+        });
+      } else {
+        // Is not localhost. Just register service worker
+        registerValidSW(swUrl, config);
+      }
+    });
+  }
+}
+
+function registerValidSW(swUrl, config) {
+  navigator.serviceWorker
+    .register(swUrl)
+    .then(registration => {
+      registration.onupdatefound = () => {
+        const installingWorker = registration.installing;
+        if (installingWorker == null) {
+          return;
+        }
+        installingWorker.onstatechange = () => {
+          if (installingWorker.state === 'installed') {
+            if (navigator.serviceWorker.controller) {
+              // At this point, the updated precached content has been fetched,
+              // but the previous service worker will still serve the older
+              // content until all client tabs are closed.
+              console.log(
+                'New content is available and will be used when all ' +
+                  'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
+              );
+
+              // Execute callback
+              if (config && config.onUpdate) {
+                config.onUpdate(registration);
+              }
+            } else {
+              // At this point, everything has been precached.
+              // It's the perfect time to display a
+              // "Content is cached for offline use." message.
+              console.log('Content is cached for offline use.');
+
+              // Execute callback
+              if (config && config.onSuccess) {
+                config.onSuccess(registration);
+              }
+            }
+          }
+        };
+      };
+    })
+    .catch(error => {
+      console.error('Error during service worker registration:', error);
+    });
+}
+
+function checkValidServiceWorker(swUrl, config) {
+  // Check if the service worker can be found. If it can't reload the page.
+  fetch(swUrl, {
+    headers: { 'Service-Worker': 'script' },
+  })
+    .then(response => {
+      // Ensure service worker exists, and that we really are getting a JS file.
+      const contentType = response.headers.get('content-type');
+      if (
+        response.status === 404 ||
+        (contentType != null && contentType.indexOf('javascript') === -1)
+      ) {
+        // No service worker found. Probably a different app. Reload the page.
+        navigator.serviceWorker.ready.then(registration => {
+          registration.unregister().then(() => {
+            window.location.reload();
+          });
+        });
+      } else {
+        // Service worker found. Proceed as normal.
+        registerValidSW(swUrl, config);
+      }
+    })
+    .catch(() => {
+      console.log(
+        'No internet connection found. App is running in offline mode.'
+      );
+    });
+}
+
+export function unregister() {
+  if ('serviceWorker' in navigator) {
+    navigator.serviceWorker.ready
+      .then(registration => {
+        registration.unregister();
+      })
+      .catch(error => {
+        console.error(error.message);
+      });
+  }
+}
--- a/calculator-react/src/setupTests.js
+++ b/calculator-react/src/setupTests.js
@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom/extend-expect';
--- a/calculator-react/src/store.js
+++ b/calculator-react/src/store.js
@ -0,0 +1,6 @@
+import { createStore } from "redux";
+import rootReducer from "./reducers/rootReducer";
+
+const store = createStore(rootReducer);
+
+export default store;
--- a/index.html
+++ b/index.html
@ -44,5 +44,8 @@
    <div>
      <a class="link" href="drum-machine-react/build" target="_blank">Drum Machine React</a>
    </div>
+    <div>
+      <a class="link" href="calculator-react/build" target="_blank">Calculator React</a>
+    </div>
  </body>
 </html>