├── screenshot.png
├── .prettierrc
├── public
    ├── favicon.png
    ├── robots.txt
    └── index.html
├── src
    ├── components
    │   ├── Quote.css
    │   ├── Footer.css
    │   ├── __tests__
    │   │   ├── __snapshots__
    │   │   │   ├── Button.test.js.snap
    │   │   │   ├── Quote.test.js.snap
    │   │   │   ├── Footer.test.js.snap
    │   │   │   ├── Header.test.js.snap
    │   │   │   ├── Home.test.js.snap
    │   │   │   └── Calculator.test.js.snap
    │   │   ├── Home.test.js
    │   │   ├── Footer.test.js
    │   │   ├── Quote.test.js
    │   │   ├── Button.test.js
    │   │   ├── Header.test.js
    │   │   └── Calculator.test.js
    │   ├── Quote.js
    │   ├── Footer.js
    │   ├── Button.js
    │   ├── Home.js
    │   ├── Header.css
    │   ├── Header.js
    │   ├── Calculator.css
    │   └── Calculator.js
    ├── App.css
    ├── setupTests.js
    ├── App.test.js
    ├── index.js
    ├── reportWebVitals.js
    ├── index.css
    ├── App.js
    └── logic
    │   ├── operate.js
    │   ├── operate.test.js
    │   ├── calculate.test.js
    │   └── calculate.js
├── .babelrc
├── .stylelintrc.json
├── .gitignore
├── .github
    ├── workflows
    │   ├── deploy-to-gh-pages.yml
    │   └── linters.yml
    └── pull_request_template.md
├── .eslintrc.json
├── README.md
├── package.json
└── LICENSE


/screenshot.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ahangarha/MV-MathMagicians/HEAD/screenshot.png


--------------------------------------------------------------------------------
/.prettierrc:
--------------------------------------------------------------------------------
1 | {
2 |   "tabWidth": 2,
3 |   "useTabs": false,
4 |   "singleQuote": true
5 | }
6 | 


--------------------------------------------------------------------------------
/public/favicon.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ahangarha/MV-MathMagicians/HEAD/public/favicon.png


--------------------------------------------------------------------------------
/public/robots.txt:
--------------------------------------------------------------------------------
1 | # https://www.robotstxt.org/robotstxt.html
2 | User-agent: *
3 | Disallow:
4 | 


--------------------------------------------------------------------------------
/src/components/Quote.css:
--------------------------------------------------------------------------------
1 | blockquote {
2 |   max-width: 500px;
3 |   margin: 0 auto;
4 |   padding: 2rem;
5 | }
6 | 


--------------------------------------------------------------------------------
/.babelrc:
--------------------------------------------------------------------------------
1 | {
2 |   "presets": [
3 |       "@babel/preset-react"
4 |   ],
5 |   "plugins": ["@babel/plugin-syntax-jsx"]
6 | }


--------------------------------------------------------------------------------
/src/components/Footer.css:
--------------------------------------------------------------------------------
1 | footer {
2 |   text-align: center;
3 |   padding: 2rem 1rem;
4 |   background-color: #000;
5 | }
6 | 


--------------------------------------------------------------------------------
/src/App.css:
--------------------------------------------------------------------------------
1 | #tabs {
2 |   width: 100%;
3 |   max-width: 992px;
4 |   margin: 0 auto;
5 |   padding: 3rem 1rem;
6 |   flex-grow: 1;
7 | }
8 | 


--------------------------------------------------------------------------------
/src/setupTests.js:
--------------------------------------------------------------------------------
1 | // jest-dom adds custom jest matchers for asserting on DOM nodes.
2 | // allows you to do things like:
3 | // expect(element).toHaveTextContent(/react/i)
4 | // learn more: https://github.com/testing-library/jest-dom
5 | import '@testing-library/jest-dom';
6 | 


--------------------------------------------------------------------------------
/src/components/__tests__/__snapshots__/Button.test.js.snap:
--------------------------------------------------------------------------------
 1 | // Jest Snapshot v1, https://goo.gl/fbAQLP
 2 | 
 3 | exports[`Renders correctly 1`] = `
 4 | <button
 5 |   className="btn btn-operation"
 6 |   onClick={[Function]}
 7 |   type="button"
 8 | >
 9 |   +
10 | </button>
11 | `;
12 | 


--------------------------------------------------------------------------------
/src/App.test.js:
--------------------------------------------------------------------------------
1 | import { render, screen } from '@testing-library/react';
2 | import App from './App';
3 | 
4 | it('renders branding title', () => {
5 |   render(<App />);
6 |   const branding = screen.getByRole('heading', { name: 'Math Magicians' });
7 |   expect(branding).toBeInTheDocument();
8 | });
9 | 


--------------------------------------------------------------------------------
/src/components/__tests__/Home.test.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import Renderer from 'react-test-renderer';
 3 | import Home from '../Home';
 4 | 
 5 | it('Renders correctly', () => {
 6 |   const tree = Renderer
 7 |     .create(<Home />)
 8 |     .toJSON();
 9 | 
10 |   expect(tree).toMatchSnapshot();
11 | });
12 | 


--------------------------------------------------------------------------------
/src/components/__tests__/Footer.test.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import Renderer from 'react-test-renderer';
 3 | import Footer from '../Footer';
 4 | 
 5 | it('Renders correctly', () => {
 6 |   const tree = Renderer
 7 |     .create(<Footer />)
 8 |     .toJSON();
 9 | 
10 |   expect(tree).toMatchSnapshot();
11 | });
12 | 


--------------------------------------------------------------------------------
/src/components/__tests__/Quote.test.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import Renderer from 'react-test-renderer';
 3 | import Quote from '../Quote';
 4 | 
 5 | it('Renders correctly', () => {
 6 |   const tree = Renderer
 7 |     .create(<Quote />)
 8 |     .toJSON();
 9 | 
10 |   expect(tree).toMatchSnapshot();
11 | });
12 | 


--------------------------------------------------------------------------------
/src/components/__tests__/Button.test.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import Renderer from 'react-test-renderer';
 3 | import Button from '../Button';
 4 | 
 5 | it('Renders correctly', () => {
 6 |   const tree = Renderer
 7 |     .create(<Button value="+" onClick={() => { }} />)
 8 |     .toJSON();
 9 | 
10 |   expect(tree).toMatchSnapshot();
11 | });
12 | 


--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import './index.css';
 4 | import App from './App';
 5 | import reportWebVitals from './reportWebVitals';
 6 | 
 7 | ReactDOM.render(
 8 |   <React.StrictMode>
 9 |     <App />
10 |   </React.StrictMode>,
11 |   document.getElementById('root'),
12 | );
13 | 
14 | reportWebVitals();
15 | 


--------------------------------------------------------------------------------
/.stylelintrc.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "extends": ["stylelint-config-standard"],
 3 |   "plugins": ["stylelint-scss", "stylelint-csstree-validator"],
 4 |   "rules": {
 5 |     "at-rule-no-unknown": null,
 6 |     "scss/at-rule-no-unknown": true,
 7 |     "csstree/validator": true
 8 |   },
 9 |   "ignoreFiles": ["build/**", "dist/**", "**/reset*.css", "**/bootstrap*.css", "**/*.js", "**/*.jsx"]
10 | }
11 | 


--------------------------------------------------------------------------------
/src/components/__tests__/__snapshots__/Quote.test.js.snap:
--------------------------------------------------------------------------------
 1 | // Jest Snapshot v1, https://goo.gl/fbAQLP
 2 | 
 3 | exports[`Renders correctly 1`] = `
 4 | <blockquote>
 5 |   Mathematics is the most beautiful and most powerful creation of the human spirit.
 6 |   <span
 7 |     className="quote-ref"
 8 |   >
 9 |     — Stefan Banach, Polish mathematician
10 |   </span>
11 | </blockquote>
12 | `;
13 | 


--------------------------------------------------------------------------------
/src/components/Quote.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import './Quote.css';
 3 | 
 4 | export default function Quote() {
 5 |   return (
 6 |     <blockquote>
 7 |       Mathematics is the most beautiful and most powerful creation of the human spirit.
 8 |       <span className="quote-ref">
 9 |         — Stefan Banach, Polish mathematician
10 |       </span>
11 |     </blockquote>
12 |   );
13 | }
14 | 


--------------------------------------------------------------------------------
/src/components/__tests__/__snapshots__/Footer.test.js.snap:
--------------------------------------------------------------------------------
 1 | // Jest Snapshot v1, https://goo.gl/fbAQLP
 2 | 
 3 | exports[`Renders correctly 1`] = `
 4 | <footer>
 5 |   This is a Free/Libre Software under 
 6 |   <a
 7 |     href="https://github.com/ahangarha/MV-MathMagicians/"
 8 |     rel="noopener noreferrer"
 9 |     target="_blank"
10 |   >
11 |     AGPL license
12 |   </a>
13 |   .
14 | </footer>
15 | `;
16 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | /.pnp
 6 | .pnp.js
 7 | 
 8 | # testing
 9 | /coverage
10 | 
11 | # production
12 | /build
13 | 
14 | # misc
15 | .DS_Store
16 | .env.local
17 | .env.development.local
18 | .env.test.local
19 | .env.production.local
20 | 
21 | npm-debug.log*
22 | yarn-debug.log*
23 | yarn-error.log*
24 | 


--------------------------------------------------------------------------------
/src/components/Footer.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import './Footer.css';
 3 | 
 4 | export default function Footer() {
 5 |   return (
 6 |     <footer>
 7 |       This is a Free/Libre Software under&nbsp;
 8 |       <a
 9 |         href="https://github.com/ahangarha/MV-MathMagicians/"
10 |         target="_blank"
11 |         rel="noopener noreferrer"
12 |       >
13 |         AGPL license
14 |       </a>
15 |       .
16 |     </footer>
17 |   );
18 | }
19 | 


--------------------------------------------------------------------------------
/src/components/__tests__/Header.test.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import { BrowserRouter } from 'react-router-dom';
 3 | import Renderer from 'react-test-renderer';
 4 | import Header from '../Header';
 5 | 
 6 | const MockHeader = () => (
 7 |   <BrowserRouter>
 8 |     <Header />
 9 |   </BrowserRouter>
10 | );
11 | 
12 | it('Renders correctly', () => {
13 |   const tree = Renderer
14 |     .create(<MockHeader />)
15 |     .toJSON();
16 | 
17 |   expect(tree).toMatchSnapshot();
18 | });
19 | 


--------------------------------------------------------------------------------
/src/reportWebVitals.js:
--------------------------------------------------------------------------------
 1 | const reportWebVitals = (onPerfEntry) => {
 2 |   if (onPerfEntry && onPerfEntry instanceof Function) {
 3 |     import('web-vitals').then(({
 4 |       getCLS,
 5 |       getFID,
 6 |       getFCP,
 7 |       getLCP,
 8 |       getTTFB,
 9 |     }) => {
10 |       getCLS(onPerfEntry);
11 |       getFID(onPerfEntry);
12 |       getFCP(onPerfEntry);
13 |       getLCP(onPerfEntry);
14 |       getTTFB(onPerfEntry);
15 |     });
16 |   }
17 | };
18 | 
19 | export default reportWebVitals;
20 | 


--------------------------------------------------------------------------------
/.github/workflows/deploy-to-gh-pages.yml:
--------------------------------------------------------------------------------
 1 | name: Build and Deploy
 2 | on:
 3 |   push:
 4 |     branches:
 5 |       - develop
 6 | jobs:
 7 |   build-and-deploy:
 8 |     runs-on: ubuntu-latest
 9 |     steps:
10 |       - name: Checkout 🛎️
11 |         uses: actions/checkout@v2.3.1
12 | 
13 |       - name: Install and Build 🔧
14 |         run: |
15 |           npm install
16 |           npm run build
17 | 
18 |       - name: Deploy 🚀
19 |         uses: JamesIves/github-pages-deploy-action@4.1.5
20 |         with:
21 |           branch: gh-pages
22 |           folder: build
23 | 


--------------------------------------------------------------------------------
/src/components/Button.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import PropTypes from 'prop-types';
 3 | 
 4 | export default function Button({ value, onClick }) {
 5 |   let className = /[0-9.]/.test(value) ? 'btn' : 'btn btn-operation';
 6 |   className += value === '0' ? ' btn-0' : '';
 7 | 
 8 |   return (
 9 |     <button
10 |       className={className}
11 |       onClick={() => onClick(value)}
12 |       type="button"
13 |     >
14 |       {value}
15 |     </button>
16 |   );
17 | }
18 | 
19 | Button.propTypes = {
20 |   value: PropTypes.string.isRequired,
21 |   onClick: PropTypes.func,
22 | };
23 | 
24 | Button.defaultProps = {
25 |   onClick: () => null,
26 | };
27 | 


--------------------------------------------------------------------------------
/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8" />
 5 |     <link rel="icon" href="%PUBLIC_URL%/favicon.png" />
 6 |     <meta name="viewport" content="width=device-width, initial-scale=1" />
 7 |     <meta name="theme-color" content="#000000" />
 8 |     <meta
 9 |       name="description"
10 |       content="A calculator made with Reactjs"
11 |     />
12 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
13 |     <title>React Calculator</title>
14 |   </head>
15 |   <body>
16 |     <noscript>You need to enable JavaScript to run this app.</noscript>
17 |     <div id="root"></div>
18 |   </body>
19 | </html>
20 | 


--------------------------------------------------------------------------------
/.eslintrc.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "env": {
 3 |     "browser": true,
 4 |     "es6": true,
 5 |     "jest": true
 6 |   },
 7 |   "parser": "@babel/eslint-parser",
 8 |   "parserOptions": {
 9 |     "ecmaFeatures": {
10 |       "jsx": true
11 |     },
12 |     "ecmaVersion": 2018,
13 |     "sourceType": "module"
14 |   },
15 |   "extends": ["airbnb", "plugin:react/recommended"],
16 |   "plugins": ["react"],
17 |   "rules": {
18 |     "react/jsx-filename-extension": ["warn", { "extensions": [".js", ".jsx"] }],
19 |     "react/react-in-jsx-scope": "off",
20 |     "import/no-unresolved": "off",
21 |     "no-shadow": "off"
22 |   },
23 |   "ignorePatterns": [
24 |     "dist/",
25 |     "build/"
26 |   ]
27 | }
28 | 


--------------------------------------------------------------------------------
/src/index.css:
--------------------------------------------------------------------------------
 1 | * {
 2 |   box-sizing: border-box;
 3 | }
 4 | 
 5 | body {
 6 |   margin: 0;
 7 |   height: 100vh;
 8 |   min-height: 100vh;
 9 |   background: #111;
10 |   font-family: sans-serif;
11 |   -webkit-font-smoothing: antialiased;
12 |   -moz-osx-font-smoothing: grayscale;
13 |   color: #eee;
14 | }
15 | 
16 | #root {
17 |   display: flex;
18 |   flex-direction: column;
19 |   justify-content: stretch;
20 |   height: 100%;
21 | }
22 | 
23 | blockquote .quote-ref {
24 |   margin-top: 1rem;
25 |   display: block;
26 |   text-align: end;
27 |   font-style: italic;
28 | }
29 | 
30 | .container {
31 |   width: 100%;
32 |   max-width: 992px;
33 |   margin: 0 auto;
34 | }
35 | 
36 | a {
37 |   color: #c77;
38 | }
39 | 


--------------------------------------------------------------------------------
/src/App.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import {
 3 |   BrowserRouter as Router,
 4 |   Routes,
 5 |   Route,
 6 | } from 'react-router-dom';
 7 | 
 8 | import Calculator from './components/Calculator';
 9 | import './App.css';
10 | import Header from './components/Header';
11 | import Footer from './components/Footer';
12 | import Home from './components/Home';
13 | import Quote from './components/Quote';
14 | 
15 | export default function App() {
16 |   return (
17 |     <Router>
18 |       <Header />
19 |       <main id="tabs">
20 |         <Routes>
21 |           <Route path="/" element={<Home />} />
22 |           <Route path="/calculator" element={<Calculator />} />
23 |           <Route path="/quote" element={<Quote />} />
24 |         </Routes>
25 |       </main>
26 |       <Footer />
27 |     </Router>
28 |   );
29 | }
30 | 


--------------------------------------------------------------------------------
/src/logic/operate.js:
--------------------------------------------------------------------------------
 1 | import Big from 'big.js';
 2 | 
 3 | export default function operate(numberOne, numberTwo, operation) {
 4 |   const one = Big(numberOne);
 5 |   const two = Big(numberTwo);
 6 |   if (operation === '+') {
 7 |     return one.plus(two).toString();
 8 |   }
 9 |   if (operation === '-') {
10 |     return one.minus(two).toString();
11 |   }
12 |   if (operation === '⨉') {
13 |     return one.times(two).toString();
14 |   }
15 |   if (operation === '÷') {
16 |     try {
17 |       return one.div(two).toString();
18 |     } catch (err) {
19 |       return "Can't divide by 0.";
20 |     }
21 |   }
22 |   if (operation === '%') {
23 |     try {
24 |       return one.mod(two).toString();
25 |     } catch (err) {
26 |       return "Can't find modulo as can't divide by 0.";
27 |     }
28 |   }
29 |   throw Error(`Unknown operation '${operation}'`);
30 | }
31 | 


--------------------------------------------------------------------------------
/.github/pull_request_template.md:
--------------------------------------------------------------------------------
 1 | *Please remove all italic texts including this one. Feel free to add/remove text as per your need.*
 2 | 
 3 | ## Description
 4 | 
 5 | Replace this text with a short concise description about this PR.
 6 | 
 7 | ### General requirements
 8 | 
 9 | *Check items below by adding x between brackets.*
10 | 
11 | - [ ] There are **no linter errors**.
12 | - [ ] Followed the **Gitflow**.
13 | - [ ] The documentation is **professional**.
14 | 
15 | ### HTML/CSS requirements
16 | 
17 | *Feel free to remove the item(s) not related to this PR.*
18 | 
19 | - [ ] Followed best practices for JavaScript
20 | 
21 | ### Project requirements
22 | 
23 | - [ ] task 1
24 | - [ ] task 2
25 | 
26 | ### Additional notes
27 | 
28 | Feel free to add any additional notes here if needed or remove it entirely
29 | 
30 | ---
31 | Thank you for taking the time to review this pull request.
32 | 
33 | 


--------------------------------------------------------------------------------
/src/components/Home.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | 
 3 | export default function Home() {
 4 |   return (
 5 |     <>
 6 |       <h2>Are you a math magician?</h2>
 7 |       <p>
 8 |         Well! You might or might not be the one! But here you can do basic
 9 |         mathematical operations using a simple calculator.
10 |       </p>
11 |       <p>
12 |         This project is an educational web application made by React to learn
13 |         and practice some key concepts such as the followings:
14 |       </p>
15 |       <ul>
16 |         <li>Create a basic react app</li>
17 |         <li>Work with states and props</li>
18 |         <li>Handle events</li>
19 |         <li>Use router</li>
20 |         <li>Styling in React projects</li>
21 |       </ul>
22 |       <p>
23 |         Use the navigation menu to explore the app. If you like the app, show
24 |         your support by adding a star to the project on&nbsp;
25 |         <a href="https://github.com/ahangarha/MV-MathMagicians/">GitHub</a>
26 |         .
27 |       </p>
28 |     </>
29 |   );
30 | }
31 | 


--------------------------------------------------------------------------------
/src/components/Header.css:
--------------------------------------------------------------------------------
 1 | header {
 2 |   background-color: #000;
 3 | }
 4 | 
 5 | header .container {
 6 |   display: flex;
 7 |   justify-content: space-between;
 8 |   align-items: center;
 9 |   color: #ddd;
10 |   padding-inline: 1rem;
11 | }
12 | 
13 | header .branding {
14 |   font-size: 1.25rem;
15 |   font-weight: bold;
16 |   line-height: 1;
17 |   margin: 0;
18 | }
19 | 
20 | header nav ul {
21 |   display: flex;
22 |   align-items: center;
23 |   list-style: none;
24 |   padding: 0;
25 |   margin: 0;
26 | }
27 | 
28 | header nav a {
29 |   display: inline-block;
30 |   padding: 2rem 0.5rem;
31 |   text-decoration: none;
32 |   position: relative;
33 | }
34 | 
35 | header nav a:hover {
36 |   background-color: #fff1;
37 | }
38 | 
39 | header nav a.active::after {
40 |   content: '';
41 |   width: 100%;
42 |   border-bottom: 0.75rem solid #111;
43 |   position: absolute;
44 |   inset-inline: 0;
45 |   inset-block-end: 0;
46 | }
47 | 
48 | @media (min-width: 768px) {
49 |   header .branding {
50 |     font-size: 2rem;
51 |   }
52 | 
53 |   header nav a {
54 |     font-size: 1.25rem;
55 |   }
56 | }
57 | 


--------------------------------------------------------------------------------
/src/components/__tests__/__snapshots__/Header.test.js.snap:
--------------------------------------------------------------------------------
 1 | // Jest Snapshot v1, https://goo.gl/fbAQLP
 2 | 
 3 | exports[`Renders correctly 1`] = `
 4 | <header>
 5 |   <div
 6 |     className="container"
 7 |   >
 8 |     <h1
 9 |       className="branding"
10 |     >
11 |       Math
12 |       <br />
13 |       Magicians
14 |     </h1>
15 |     <nav>
16 |       <ul>
17 |         <li>
18 |           <a
19 |             aria-current="page"
20 |             className="active"
21 |             href="/"
22 |             onClick={[Function]}
23 |           >
24 |             Home
25 |           </a>
26 |         </li>
27 |         <li>
28 |           <a
29 |             className=""
30 |             href="/calculator"
31 |             onClick={[Function]}
32 |           >
33 |             Calculator
34 |           </a>
35 |         </li>
36 |         <li>
37 |           <a
38 |             className=""
39 |             href="/quote"
40 |             onClick={[Function]}
41 |           >
42 |             Quote
43 |           </a>
44 |         </li>
45 |       </ul>
46 |     </nav>
47 |   </div>
48 | </header>
49 | `;
50 | 


--------------------------------------------------------------------------------
/src/components/__tests__/__snapshots__/Home.test.js.snap:
--------------------------------------------------------------------------------
 1 | // Jest Snapshot v1, https://goo.gl/fbAQLP
 2 | 
 3 | exports[`Renders correctly 1`] = `
 4 | Array [
 5 |   <h2>
 6 |     Are you a math magician?
 7 |   </h2>,
 8 |   <p>
 9 |     Well! You might or might not be the one! But here you can do basic mathematical operations using a simple calculator.
10 |   </p>,
11 |   <p>
12 |     This project is an educational web application made by React to learn and practice some key concepts such as the followings:
13 |   </p>,
14 |   <ul>
15 |     <li>
16 |       Create a basic react app
17 |     </li>
18 |     <li>
19 |       Work with states and props
20 |     </li>
21 |     <li>
22 |       Handle events
23 |     </li>
24 |     <li>
25 |       Use router
26 |     </li>
27 |     <li>
28 |       Styling in React projects
29 |     </li>
30 |   </ul>,
31 |   <p>
32 |     Use the navigation menu to explore the app. If you like the app, show your support by adding a star to the project on 
33 |     <a
34 |       href="https://github.com/ahangarha/MV-MathMagicians/"
35 |     >
36 |       GitHub
37 |     </a>
38 |     .
39 |   </p>,
40 | ]
41 | `;
42 | 


--------------------------------------------------------------------------------
/src/components/Header.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import { NavLink } from 'react-router-dom';
 3 | import './Header.css';
 4 | 
 5 | export default function Header() {
 6 |   return (
 7 |     <header>
 8 |       <div className="container">
 9 |         <h1 className="branding">
10 |           Math
11 |           <br />
12 |           Magicians
13 |         </h1>
14 |         <nav>
15 |           <ul>
16 |             <li>
17 |               <NavLink
18 |                 to="/"
19 |                 className={({ isActive }) => (isActive ? 'active' : '')}
20 |               >
21 |                 Home
22 |               </NavLink>
23 |             </li>
24 |             <li>
25 |               <NavLink
26 |                 to="/calculator"
27 |               >
28 |                 Calculator
29 |               </NavLink>
30 |             </li>
31 |             <li>
32 |               <NavLink
33 |                 to="/quote"
34 |                 className={({ isActive }) => (isActive ? 'active' : '')}
35 |               >
36 |                 Quote
37 |               </NavLink>
38 |             </li>
39 |           </ul>
40 |         </nav>
41 |       </div>
42 |     </header>
43 |   );
44 | }
45 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | ![](https://img.shields.io/badge/Microverse-blueviolet)
 2 | 
 3 | # Math Magicians (Microverse project)
 4 | 
 5 | This is an educational project to make a calculator using Reactjs.
 6 | 
 7 | ## Built With
 8 | 
 9 | - Reactjs
10 | 
11 | ## Demo
12 | 
13 | A live demo of this app can be seen on [netlify](https://ahangarha-math.netlify.app/).
14 | 
15 | ![Screenshot](./screenshot.png)
16 | 
17 | ## Usage
18 | 
19 | To build the project run:
20 | 
21 | ```
22 | $ npm install
23 | $ npm run build
24 | ```
25 | 
26 | ## Development
27 | 
28 | In development environment use the following command:
29 | 
30 | ```
31 | $ npm start
32 | ```
33 | 
34 | ## Author
35 | 
36 | 👤 **Mostafa Ahangarha**
37 | 
38 | - GitHub: [@ahangarha](https://github.com/ahangarha)
39 | - Mastodon [@ahangarha@mas.to](https://mas.to/@ahangarha)
40 | - Twitter: [@ahangarha](https://twitter.com/ahangarha)
41 | - LinkedIn: [ahangarha](https://linkedin.com/in/ahangarha)
42 | 
43 | ## 🤝 Contributing
44 | 
45 | As an educational project at this stage I am not supposed to accept any PR. Yet I appreciate if you can report problems from [issues page](../../issues/).
46 | 
47 | ## Show your support
48 | 
49 | Give a ⭐️ if you like this project!
50 | 
51 | ## Acknowledgments
52 | 
53 | - Linters are made by Microverse Inc.
54 | 
55 | ## 📝 License
56 | 
57 | This project is released under [AGPL](./LICENSE) licensed.
58 | 


--------------------------------------------------------------------------------
/src/components/__tests__/Calculator.test.js:
--------------------------------------------------------------------------------
 1 | import { fireEvent, render, screen } from '@testing-library/react';
 2 | import React from 'react';
 3 | import Renderer from 'react-test-renderer';
 4 | import Calculator from '../Calculator';
 5 | 
 6 | it('Renders correctly', () => {
 7 |   const tree = Renderer
 8 |     .create(<Calculator />)
 9 |     .toJSON();
10 | 
11 |   expect(tree).toMatchSnapshot();
12 | });
13 | 
14 | it('shows 14 on "5 + 9 =" operation', () => {
15 |   render(<Calculator />);
16 | 
17 |   fireEvent.click(screen.getByRole('button', { name: '5' }));
18 |   fireEvent.click(screen.getByRole('button', { name: '+' }));
19 |   fireEvent.click(screen.getByRole('button', { name: '9' }));
20 |   fireEvent.click(screen.getByRole('button', { name: '=' }));
21 | 
22 |   expect(screen.getByText('14')).toBeTruthy();
23 | });
24 | 
25 | it('shows 552 on "555 - 3 =" operation', () => {
26 |   render(<Calculator />);
27 | 
28 |   fireEvent.click(screen.getByRole('button', { name: '5' }));
29 |   fireEvent.click(screen.getByRole('button', { name: '5' }));
30 |   fireEvent.click(screen.getByRole('button', { name: '5' }));
31 |   fireEvent.click(screen.getByRole('button', { name: '-' }));
32 |   fireEvent.click(screen.getByRole('button', { name: '3' }));
33 |   fireEvent.click(screen.getByRole('button', { name: '=' }));
34 | 
35 |   expect(screen.getByText('552')).toBeTruthy();
36 | });
37 | 


--------------------------------------------------------------------------------
/.github/workflows/linters.yml:
--------------------------------------------------------------------------------
 1 | name: Linters
 2 | 
 3 | on: pull_request
 4 | 
 5 | env:
 6 |   FORCE_COLOR: 1
 7 | 
 8 | jobs:
 9 |   eslint:
10 |     name: ESLint
11 |     runs-on: ubuntu-18.04
12 |     steps:
13 |       - uses: actions/checkout@v2
14 |       - uses: actions/setup-node@v1
15 |         with:
16 |           node-version: "12.x"
17 |       - name: Setup ESLint
18 |         run: |
19 |           npm install --save-dev eslint@7.x eslint-config-airbnb@18.x eslint-plugin-import@2.x eslint-plugin-jsx-a11y@6.x eslint-plugin-react@7.x eslint-plugin-react-hooks@4.x @babel/eslint-parser@7.x @babel/core@7.x  @babel/plugin-syntax-jsx@7.x @babel/preset-env@7.x  @babel/preset-react@7.x
20 |           [ -f .eslintrc.json ] || wget https://raw.githubusercontent.com/microverseinc/linters-config/master/react-redux/.eslintrc.json
21 |           [ -f .babelrc ] || wget https://raw.githubusercontent.com/microverseinc/linters-config/master/react-redux/.babelrc
22 |       - name: ESLint Report
23 |         run: npx eslint .
24 |   stylelint:
25 |     name: Stylelint
26 |     runs-on: ubuntu-18.04
27 |     steps:
28 |       - uses: actions/checkout@v2
29 |       - uses: actions/setup-node@v1
30 |         with:
31 |           node-version: "12.x"
32 |       - name: Setup Stylelint
33 |         run: |
34 |           npm install --save-dev stylelint@13.x stylelint-scss@3.x stylelint-config-standard@21.x stylelint-csstree-validator@1.x
35 |           [ -f .stylelintrc.json ] || wget https://raw.githubusercontent.com/microverseinc/linters-config/master/react-redux/.stylelintrc.json
36 |       - name: Stylelint Report
37 |         run: npx stylelint "**/*.{css,scss}"
38 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "math-magicians",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "homepage": ".",
 6 |   "dependencies": {
 7 |     "@testing-library/jest-dom": "^5.16.2",
 8 |     "@testing-library/react": "^12.1.4",
 9 |     "@testing-library/user-event": "^13.5.0",
10 |     "big.js": "^6.1.1",
11 |     "prop-types": "^15.8.1",
12 |     "react": "^17.0.2",
13 |     "react-dom": "^17.0.2",
14 |     "react-router-dom": "^6.2.2",
15 |     "react-scripts": "5.0.0",
16 |     "react-test-renderer": "^17.0.2",
17 |     "web-vitals": "^2.1.4"
18 |   },
19 |   "scripts": {
20 |     "start": "react-scripts start",
21 |     "build": "react-scripts build",
22 |     "test": "react-scripts test",
23 |     "eject": "react-scripts eject",
24 |     "lint": "npx eslint .; npx stylelint \"**/*.{css,scss}\""
25 |   },
26 |   "eslintConfig": {
27 |     "extends": [
28 |       "react-app",
29 |       "react-app/jest"
30 |     ]
31 |   },
32 |   "browserslist": {
33 |     "production": [
34 |       ">0.2%",
35 |       "not dead",
36 |       "not op_mini all"
37 |     ],
38 |     "development": [
39 |       "last 1 chrome version",
40 |       "last 1 firefox version",
41 |       "last 1 safari version"
42 |     ]
43 |   },
44 |   "devDependencies": {
45 |     "@babel/core": "^7.17.5",
46 |     "@babel/eslint-parser": "^7.17.0",
47 |     "@babel/plugin-syntax-jsx": "^7.16.7",
48 |     "@babel/preset-react": "^7.16.7",
49 |     "eslint": "^7.32.0",
50 |     "eslint-config-airbnb": "^18.2.1",
51 |     "eslint-plugin-import": "^2.25.4",
52 |     "eslint-plugin-jsx-a11y": "^6.5.1",
53 |     "eslint-plugin-react": "^7.29.4",
54 |     "eslint-plugin-react-hooks": "^4.3.0",
55 |     "stylelint": "^13.13.1",
56 |     "stylelint-config-standard": "^21.0.0",
57 |     "stylelint-csstree-validator": "^1.9.0",
58 |     "stylelint-scss": "^3.21.0"
59 |   }
60 | }
61 | 


--------------------------------------------------------------------------------
/src/components/Calculator.css:
--------------------------------------------------------------------------------
 1 | .calculator-tab-wrapper {
 2 |   display: flex;
 3 |   flex-direction: column;
 4 |   align-items: center;
 5 |   gap: 2rem;
 6 | }
 7 | 
 8 | @media (min-width: 992px) {
 9 |   .calculator-tab-wrapper {
10 |     display: flex;
11 |     flex-direction: row;
12 |     justify-content: stretch;
13 |     align-items: flex-start;
14 |     gap: 2rem;
15 |   }
16 | }
17 | 
18 | .calculator-wrapper {
19 |   display: grid;
20 |   grid-template-columns: repeat(4, 1fr);
21 |   gap: 0.25rem;
22 |   padding: 1rem;
23 |   border: 1px solid #222;
24 |   flex-shrink: 0;
25 |   flex-grow: 0;
26 | }
27 | 
28 | .result-section {
29 |   grid-column: 4 span;
30 |   display: flex;
31 |   flex-direction: column;
32 |   gap: 0.25rem;
33 |   background-color: #000;
34 |   color: white;
35 |   padding: 1rem;
36 |   text-align: right;
37 |   font-size: 2rem;
38 |   margin-bottom: 1rem;
39 |   border: 1px solid #222;
40 | }
41 | 
42 | .result-section .math {
43 |   border-top: 1px solid #111;
44 |   padding-block: 0.25rem;
45 |   font-size: 0.75rem;
46 |   height: 1rem;
47 |   color: #950;
48 | }
49 | 
50 | .calculator-wrapper .btn {
51 |   display: grid;
52 |   place-content: center;
53 |   padding: 1rem;
54 |   background-color: #323;
55 |   color: #ccc;
56 |   cursor: pointer;
57 |   border: none;
58 |   font-size: 1.5rem;
59 |   transition: background-color 100ms;
60 | }
61 | 
62 | .calculator-wrapper .btn:hover {
63 |   background-color: #434;
64 | }
65 | 
66 | .calculator-wrapper .btn:active {
67 |   background-color: #212;
68 |   transform: translateY(0.05rem);
69 | }
70 | 
71 | .calculator-wrapper .btn-operation {
72 |   background-color: #622;
73 | }
74 | 
75 | .calculator-wrapper .btn-operation:hover {
76 |   background-color: #833;
77 | }
78 | 
79 | .calculator-wrapper .btn-operation:active {
80 |   background-color: #411;
81 | }
82 | 
83 | .btn-0 {
84 |   grid-column: 2 span;
85 | }
86 | 


--------------------------------------------------------------------------------
/src/logic/operate.test.js:
--------------------------------------------------------------------------------
 1 | import operate from './operate';
 2 | 
 3 | describe('Plus Operation', () => {
 4 |   test('1 + 2 = 3', () => {
 5 |     expect(operate(1, 2, '+')).toBe('3');
 6 |   });
 7 | 
 8 |   test('-1 + -2 = -3', () => {
 9 |     expect(operate(-1, -2, '+')).toBe('-3');
10 |   });
11 | });
12 | 
13 | describe('minus Operation', () => {
14 |   test('10 - 2 = 8', () => {
15 |     expect(operate(10, 2, '-')).toBe('8');
16 |   });
17 | 
18 |   test('0 - 2 = -3', () => {
19 |     expect(operate(0, 2, '-')).toBe('-2');
20 |   });
21 | });
22 | describe('times Operation', () => {
23 |   test('2 * 4 = 8', () => {
24 |     expect(operate(2, 4, '⨉')).toBe('8');
25 |   });
26 | 
27 |   test('0 * 2 = 0', () => {
28 |     expect(operate(0, 2, '⨉')).toBe('0');
29 |   });
30 | 
31 |   test('2 * 0 = 0', () => {
32 |     expect(operate(2, 0, '⨉')).toBe('0');
33 |   });
34 | });
35 | describe('divide Operation', () => {
36 |   test('4 / 2 = 2', () => {
37 |     expect(operate(4, 2, '÷')).toBe('2');
38 |   });
39 | 
40 |   test('0 / 2 = 0', () => {
41 |     expect(operate(0, 2, '÷')).toBe('0');
42 |   });
43 | 
44 |   test('2 / 0 = Error Message', () => {
45 |     expect(operate(2, 0, '÷')).toBe('Can\'t divide by 0.');
46 |   });
47 | });
48 | 
49 | describe('mod Operation', () => {
50 |   test('4 % 2 = 0', () => {
51 |     expect(operate(4, 2, '%')).toBe('0');
52 |   });
53 | 
54 |   test('0 % 2 = 0', () => {
55 |     expect(operate(0, 2, '%')).toBe('0');
56 |   });
57 | 
58 |   test('5 % 2 = 0', () => {
59 |     expect(operate(5, 2, '%')).toBe('1');
60 |   });
61 | 
62 |   test('2 % 0 = Error Message', () => {
63 |     expect(operate(2, 0, '%')).toBe('Can\'t find modulo as can\'t divide by 0.');
64 |   });
65 | });
66 | 
67 | describe('unknown Operation', () => {
68 |   test('Throw error on unknown operation', () => {
69 |     expect(() => {
70 |       operate(0, 0, 'U');
71 |     }).toThrowError('Unknown operation \'U\'');
72 |   });
73 | });
74 | 


--------------------------------------------------------------------------------
/src/components/Calculator.js:
--------------------------------------------------------------------------------
 1 | import React, { useEffect, useState } from 'react';
 2 | import calculate from '../logic/calculate';
 3 | import Button from './Button';
 4 | import './Calculator.css';
 5 | 
 6 | export default function Calculator() {
 7 |   const [calcObj, setCalcObj] = useState({
 8 |     total: null,
 9 |     next: null,
10 |     operation: null,
11 |   });
12 |   const [math, setMath] = useState('hi');
13 | 
14 |   const onClick = (buttonName) => {
15 |     setCalcObj({ ...calcObj, ...calculate(calcObj, buttonName) });
16 |   };
17 | 
18 |   useEffect(() => {
19 |     const { total, next, operation } = calcObj;
20 | 
21 |     const newMath = [' '];
22 |     [total, operation, next].forEach((item) => {
23 |       if (item !== null) newMath.push(item);
24 |     });
25 | 
26 |     // if we only have result, no math should be shown
27 |     if (newMath.length === 2 && total !== null) {
28 |       newMath.pop();
29 |     }
30 | 
31 |     setMath(newMath.join(' '));
32 |   }, [calcObj]);
33 | 
34 |   const result = calcObj.total || calcObj.next;
35 | 
36 |   const buttonsTitles = [
37 |     'AC', '+/-', '%', '÷',
38 |     '7', '8', '9', '⨉',
39 |     '4', '5', '6', '-',
40 |     '1', '2', '3', '+',
41 |     '0', '.', '=',
42 |   ];
43 | 
44 |   return (
45 |     <div className="calculator-tab-wrapper">
46 |       <div className="calculator-info">
47 |         <h2>
48 |           Let&apos;s do some math!
49 |         </h2>
50 |         <p>
51 |           Use this calculator to do basic math operations.
52 |           If you find any issue or bug, please report it to
53 |           the project repository by opening a new&nbsp;
54 |           <a href="https://github.com/ahangarha/MV-MathMagicians/issues" target="_blank" rel="noopener noreferrer">issue</a>
55 |           .
56 |         </p>
57 |       </div>
58 |       <div className="calculator-wrapper">
59 |         <div className="result-section">
60 |           {Number(result)}
61 |           <div className="math">{math}</div>
62 |         </div>
63 |         {
64 |           buttonsTitles.map((btnTitle) => (
65 |             <Button value={btnTitle} onClick={onClick} key={btnTitle} />
66 |           ))
67 |         }
68 |       </div>
69 |     </div>
70 |   );
71 | }
72 | 


--------------------------------------------------------------------------------
/src/logic/calculate.test.js:
--------------------------------------------------------------------------------
  1 | import calculate from './calculate';
  2 | 
  3 | describe('AC button', () => {
  4 |   test('AC button with no previous input', () => {
  5 |     const obj = {
  6 |       total: null,
  7 |       next: null,
  8 |       operation: null,
  9 |     };
 10 |     const expected = {
 11 |       total: null,
 12 |       next: null,
 13 |       operation: null,
 14 |     };
 15 | 
 16 |     const result = calculate(obj, 'AC');
 17 | 
 18 |     expect(result).toEqual(expected);
 19 |   });
 20 | 
 21 |   test('AC button with some previous input', () => {
 22 |     const obj = {
 23 |       total: '15',
 24 |       next: '6',
 25 |       operation: '+',
 26 |     };
 27 |     const expected = {
 28 |       total: null,
 29 |       next: null,
 30 |       operation: null,
 31 |     };
 32 | 
 33 |     const result = calculate(obj, 'AC');
 34 | 
 35 |     expect(result).toEqual(expected);
 36 |   });
 37 | });
 38 | 
 39 | describe('Number buttons', () => {
 40 |   test('press number no previous input', () => {
 41 |     const obj = {
 42 |       total: null,
 43 |       next: null,
 44 |       operation: null,
 45 |     };
 46 |     const expected = {
 47 |       total: null,
 48 |       next: '5',
 49 |     };
 50 | 
 51 |     const result = calculate(obj, '5');
 52 | 
 53 |     expect(result).toEqual(expected);
 54 |   });
 55 | 
 56 |   test('press number no previous operation', () => {
 57 |     const obj = {
 58 |       total: null,
 59 |       next: null,
 60 |       operation: '+',
 61 |     };
 62 |     const expected = {
 63 |       total: null,
 64 |       next: '5',
 65 |       operation: '+',
 66 |     };
 67 | 
 68 |     const result = calculate(obj, '5');
 69 | 
 70 |     expect(result).toEqual(expected);
 71 |   });
 72 | });
 73 | 
 74 | describe('press =', () => {
 75 |   test('with no previous input', () => {
 76 |     const obj = {
 77 |       total: null,
 78 |       next: null,
 79 |       operation: null,
 80 |     };
 81 |     const expected = {};
 82 | 
 83 |     const result = calculate(obj, '=');
 84 | 
 85 |     expect(result).toEqual(expected);
 86 |   });
 87 | 
 88 |   test('with previous input', () => {
 89 |     const obj = {
 90 |       total: '3',
 91 |       next: '2',
 92 |       operation: '+',
 93 |     };
 94 |     const expected = {
 95 |       total: '5',
 96 |       next: null,
 97 |       operation: null,
 98 |     };
 99 | 
100 |     const result = calculate(obj, '=');
101 | 
102 |     expect(result).toEqual(expected);
103 |   });
104 | });
105 | 


--------------------------------------------------------------------------------
/src/logic/calculate.js:
--------------------------------------------------------------------------------
  1 | import operate from './operate';
  2 | 
  3 | function isNumber(item) {
  4 |   return !!item.match(/[0-9]+/);
  5 | }
  6 | 
  7 | /**
  8 |  * Given a button name and a calculator data object, return an updated
  9 |  * calculator data object.
 10 |  *
 11 |  * Calculator data object contains:
 12 |  *   total:s      the running total
 13 |  *   next:String       the next number to be operated on with the total
 14 |  *   operation:String  +, -, etc.
 15 |  */
 16 | export default function calculate(obj, buttonName) {
 17 |   if (buttonName === 'AC') {
 18 |     return {
 19 |       total: null,
 20 |       next: null,
 21 |       operation: null,
 22 |     };
 23 |   }
 24 | 
 25 |   if (isNumber(buttonName)) {
 26 |     if (buttonName === '0' && obj.next === '0') {
 27 |       return {};
 28 |     }
 29 |     // If there is an operation, update next
 30 |     if (obj.operation) {
 31 |       if (obj.next) {
 32 |         return { ...obj, next: obj.next + buttonName };
 33 |       }
 34 |       return { ...obj, next: buttonName };
 35 |     }
 36 |     // If there is no operation, update next and clear the value
 37 |     if (obj.next) {
 38 |       return {
 39 |         next: obj.next + buttonName,
 40 |         total: null,
 41 |       };
 42 |     }
 43 |     return {
 44 |       next: buttonName,
 45 |       total: null,
 46 |     };
 47 |   }
 48 | 
 49 |   if (buttonName === '.') {
 50 |     if (obj.next) {
 51 |       if (obj.next.includes('.')) {
 52 |         return { ...obj };
 53 |       }
 54 |       return { ...obj, next: `${obj.next}.` };
 55 |     }
 56 |     if (obj.operation) {
 57 |       return { next: '0.' };
 58 |     }
 59 |     if (obj.total) {
 60 |       if (obj.total.includes('.')) {
 61 |         return {};
 62 |       }
 63 |       return { total: `${obj.total}.` };
 64 |     }
 65 |     return { total: '0.' };
 66 |   }
 67 | 
 68 |   if (buttonName === '=') {
 69 |     if (obj.next && obj.operation) {
 70 |       return {
 71 |         total: operate(obj.total, obj.next, obj.operation),
 72 |         next: null,
 73 |         operation: null,
 74 |       };
 75 |     }
 76 |     // '=' with no operation, nothing to do
 77 |     return {};
 78 |   }
 79 | 
 80 |   if (buttonName === '+/-') {
 81 |     if (obj.next) {
 82 |       return { ...obj, next: (-1 * parseFloat(obj.next)).toString() };
 83 |     }
 84 |     if (obj.total) {
 85 |       return { ...obj, total: (-1 * parseFloat(obj.total)).toString() };
 86 |     }
 87 |     return {};
 88 |   }
 89 | 
 90 |   // Button must be an operation
 91 | 
 92 |   // When the user presses an operation button without having entered
 93 |   // a number first, do nothing.
 94 |   if (!obj.next && !obj.total) {
 95 |     return {};
 96 |   }
 97 | 
 98 |   // User pressed an operation after pressing '='
 99 |   if (!obj.next && obj.total && !obj.operation) {
100 |     return { ...obj, operation: buttonName };
101 |   }
102 | 
103 |   // User pressed an operation button and there is an existing operation
104 |   if (obj.operation) {
105 |     if (obj.total && !obj.next) {
106 |       return { ...obj, operation: buttonName };
107 |     }
108 | 
109 |     return {
110 |       total: operate(obj.total, obj.next, obj.operation),
111 |       next: null,
112 |       operation: buttonName,
113 |     };
114 |   }
115 | 
116 |   // no operation yet, but the user typed one
117 | 
118 |   // The user hasn't typed a number yet, just save the operation
119 |   if (!obj.next) {
120 |     return { operation: buttonName };
121 |   }
122 | 
123 |   // save the operation and shift 'next' into 'total'
124 |   return {
125 |     total: obj.next,
126 |     next: null,
127 |     operation: buttonName,
128 |   };
129 | }
130 | 


--------------------------------------------------------------------------------
/src/components/__tests__/__snapshots__/Calculator.test.js.snap:
--------------------------------------------------------------------------------
  1 | // Jest Snapshot v1, https://goo.gl/fbAQLP
  2 | 
  3 | exports[`Renders correctly 1`] = `
  4 | <div
  5 |   className="calculator-tab-wrapper"
  6 | >
  7 |   <div
  8 |     className="calculator-info"
  9 |   >
 10 |     <h2>
 11 |       Let's do some math!
 12 |     </h2>
 13 |     <p>
 14 |       Use this calculator to do basic math operations. If you find any issue or bug, please report it to the project repository by opening a new 
 15 |       <a
 16 |         href="https://github.com/ahangarha/MV-MathMagicians/issues"
 17 |         rel="noopener noreferrer"
 18 |         target="_blank"
 19 |       >
 20 |         issue
 21 |       </a>
 22 |       .
 23 |     </p>
 24 |   </div>
 25 |   <div
 26 |     className="calculator-wrapper"
 27 |   >
 28 |     <div
 29 |       className="result-section"
 30 |     >
 31 |       0
 32 |       <div
 33 |         className="math"
 34 |       >
 35 |         hi
 36 |       </div>
 37 |     </div>
 38 |     <button
 39 |       className="btn btn-operation"
 40 |       onClick={[Function]}
 41 |       type="button"
 42 |     >
 43 |       AC
 44 |     </button>
 45 |     <button
 46 |       className="btn btn-operation"
 47 |       onClick={[Function]}
 48 |       type="button"
 49 |     >
 50 |       +/-
 51 |     </button>
 52 |     <button
 53 |       className="btn btn-operation"
 54 |       onClick={[Function]}
 55 |       type="button"
 56 |     >
 57 |       %
 58 |     </button>
 59 |     <button
 60 |       className="btn btn-operation"
 61 |       onClick={[Function]}
 62 |       type="button"
 63 |     >
 64 |       ÷
 65 |     </button>
 66 |     <button
 67 |       className="btn"
 68 |       onClick={[Function]}
 69 |       type="button"
 70 |     >
 71 |       7
 72 |     </button>
 73 |     <button
 74 |       className="btn"
 75 |       onClick={[Function]}
 76 |       type="button"
 77 |     >
 78 |       8
 79 |     </button>
 80 |     <button
 81 |       className="btn"
 82 |       onClick={[Function]}
 83 |       type="button"
 84 |     >
 85 |       9
 86 |     </button>
 87 |     <button
 88 |       className="btn btn-operation"
 89 |       onClick={[Function]}
 90 |       type="button"
 91 |     >
 92 |       ⨉
 93 |     </button>
 94 |     <button
 95 |       className="btn"
 96 |       onClick={[Function]}
 97 |       type="button"
 98 |     >
 99 |       4
100 |     </button>
101 |     <button
102 |       className="btn"
103 |       onClick={[Function]}
104 |       type="button"
105 |     >
106 |       5
107 |     </button>
108 |     <button
109 |       className="btn"
110 |       onClick={[Function]}
111 |       type="button"
112 |     >
113 |       6
114 |     </button>
115 |     <button
116 |       className="btn btn-operation"
117 |       onClick={[Function]}
118 |       type="button"
119 |     >
120 |       -
121 |     </button>
122 |     <button
123 |       className="btn"
124 |       onClick={[Function]}
125 |       type="button"
126 |     >
127 |       1
128 |     </button>
129 |     <button
130 |       className="btn"
131 |       onClick={[Function]}
132 |       type="button"
133 |     >
134 |       2
135 |     </button>
136 |     <button
137 |       className="btn"
138 |       onClick={[Function]}
139 |       type="button"
140 |     >
141 |       3
142 |     </button>
143 |     <button
144 |       className="btn btn-operation"
145 |       onClick={[Function]}
146 |       type="button"
147 |     >
148 |       +
149 |     </button>
150 |     <button
151 |       className="btn btn-0"
152 |       onClick={[Function]}
153 |       type="button"
154 |     >
155 |       0
156 |     </button>
157 |     <button
158 |       className="btn"
159 |       onClick={[Function]}
160 |       type="button"
161 |     >
162 |       .
163 |     </button>
164 |     <button
165 |       className="btn btn-operation"
166 |       onClick={[Function]}
167 |       type="button"
168 |     >
169 |       =
170 |     </button>
171 |   </div>
172 | </div>
173 | `;
174 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
  1 |                     GNU AFFERO GENERAL PUBLIC LICENSE
  2 |                        Version 3, 19 November 2007
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492 | available, or (2) arrange to deprive yourself of the benefit of the
493 | patent license for this particular work, or (3) arrange, in a manner
494 | consistent with the requirements of this License, to extend the patent
495 | license to downstream recipients.  "Knowingly relying" means you have
496 | actual knowledge that, but for the patent license, your conveying the
497 | covered work in a country, or your recipient's use of the covered work
498 | in a country, would infringe one or more identifiable patents in that
499 | country that you have reason to believe are valid.
500 | 
501 |   If, pursuant to or in connection with a single transaction or
502 | arrangement, you convey, or propagate by procuring conveyance of, a
503 | covered work, and grant a patent license to some of the parties
504 | receiving the covered work authorizing them to use, propagate, modify
505 | or convey a specific copy of the covered work, then the patent license
506 | you grant is automatically extended to all recipients of the covered
507 | work and works based on it.
508 | 
509 |   A patent license is "discriminatory" if it does not include within
510 | the scope of its coverage, prohibits the exercise of, or is
511 | conditioned on the non-exercise of one or more of the rights that are
512 | specifically granted under this License.  You may not convey a covered
513 | work if you are a party to an arrangement with a third party that is
514 | in the business of distributing software, under which you make payment
515 | to the third party based on the extent of your activity of conveying
516 | the work, and under which the third party grants, to any of the
517 | parties who would receive the covered work from you, a discriminatory
518 | patent license (a) in connection with copies of the covered work
519 | conveyed by you (or copies made from those copies), or (b) primarily
520 | for and in connection with specific products or compilations that
521 | contain the covered work, unless you entered into that arrangement,
522 | or that patent license was granted, prior to 28 March 2007.
523 | 
524 |   Nothing in this License shall be construed as excluding or limiting
525 | any implied license or other defenses to infringement that may
526 | otherwise be available to you under applicable patent law.
527 | 
528 |   12. No Surrender of Others' Freedom.
529 | 
530 |   If conditions are imposed on you (whether by court order, agreement or
531 | otherwise) that contradict the conditions of this License, they do not
532 | excuse you from the conditions of this License.  If you cannot convey a
533 | covered work so as to satisfy simultaneously your obligations under this
534 | License and any other pertinent obligations, then as a consequence you may
535 | not convey it at all.  For example, if you agree to terms that obligate you
536 | to collect a royalty for further conveying from those to whom you convey
537 | the Program, the only way you could satisfy both those terms and this
538 | License would be to refrain entirely from conveying the Program.
539 | 
540 |   13. Remote Network Interaction; Use with the GNU General Public License.
541 | 
542 |   Notwithstanding any other provision of this License, if you modify the
543 | Program, your modified version must prominently offer all users
544 | interacting with it remotely through a computer network (if your version
545 | supports such interaction) an opportunity to receive the Corresponding
546 | Source of your version by providing access to the Corresponding Source
547 | from a network server at no charge, through some standard or customary
548 | means of facilitating copying of software.  This Corresponding Source
549 | shall include the Corresponding Source for any work covered by version 3
550 | of the GNU General Public License that is incorporated pursuant to the
551 | following paragraph.
552 | 
553 |   Notwithstanding any other provision of this License, you have
554 | permission to link or combine any covered work with a work licensed
555 | under version 3 of the GNU General Public License into a single
556 | combined work, and to convey the resulting work.  The terms of this
557 | License will continue to apply to the part which is the covered work,
558 | but the work with which it is combined will remain governed by version
559 | 3 of the GNU General Public License.
560 | 
561 |   14. Revised Versions of this License.
562 | 
563 |   The Free Software Foundation may publish revised and/or new versions of
564 | the GNU Affero General Public License from time to time.  Such new versions
565 | will be similar in spirit to the present version, but may differ in detail to
566 | address new problems or concerns.
567 | 
568 |   Each version is given a distinguishing version number.  If the
569 | Program specifies that a certain numbered version of the GNU Affero General
570 | Public License "or any later version" applies to it, you have the
571 | option of following the terms and conditions either of that numbered
572 | version or of any later version published by the Free Software
573 | Foundation.  If the Program does not specify a version number of the
574 | GNU Affero General Public License, you may choose any version ever published
575 | by the Free Software Foundation.
576 | 
577 |   If the Program specifies that a proxy can decide which future
578 | versions of the GNU Affero General Public License can be used, that proxy's
579 | public statement of acceptance of a version permanently authorizes you
580 | to choose that version for the Program.
581 | 
582 |   Later license versions may give you additional or different
583 | permissions.  However, no additional obligations are imposed on any
584 | author or copyright holder as a result of your choosing to follow a
585 | later version.
586 | 
587 |   15. Disclaimer of Warranty.
588 | 
589 |   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
590 | APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
591 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
592 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
593 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
594 | PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
595 | IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
596 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
597 | 
598 |   16. Limitation of Liability.
599 | 
600 |   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
602 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
603 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
604 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
605 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
606 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
607 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
608 | SUCH DAMAGES.
609 | 
610 |   17. Interpretation of Sections 15 and 16.
611 | 
612 |   If the disclaimer of warranty and limitation of liability provided
613 | above cannot be given local legal effect according to their terms,
614 | reviewing courts shall apply local law that most closely approximates
615 | an absolute waiver of all civil liability in connection with the
616 | Program, unless a warranty or assumption of liability accompanies a
617 | copy of the Program in return for a fee.
618 | 
619 |                      END OF TERMS AND CONDITIONS
620 | 
621 |             How to Apply These Terms to Your New Programs
622 | 
623 |   If you develop a new program, and you want it to be of the greatest
624 | possible use to the public, the best way to achieve this is to make it
625 | free software which everyone can redistribute and change under these terms.
626 | 
627 |   To do so, attach the following notices to the program.  It is safest
628 | to attach them to the start of each source file to most effectively
629 | state the exclusion of warranty; and each file should have at least
630 | the "copyright" line and a pointer to where the full notice is found.
631 | 
632 |     <one line to give the program's name and a brief idea of what it does.>
633 |     Copyright (C) <year>  <name of author>
634 | 
635 |     This program is free software: you can redistribute it and/or modify
636 |     it under the terms of the GNU Affero General Public License as published
637 |     by the Free Software Foundation, either version 3 of the License, or
638 |     (at your option) any later version.
639 | 
640 |     This program is distributed in the hope that it will be useful,
641 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
642 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
643 |     GNU Affero General Public License for more details.
644 | 
645 |     You should have received a copy of the GNU Affero General Public License
646 |     along with this program.  If not, see <https://www.gnu.org/licenses/>.
647 | 
648 | Also add information on how to contact you by electronic and paper mail.
649 | 
650 |   If your software can interact with users remotely through a computer
651 | network, you should also make sure that it provides a way for users to
652 | get its source.  For example, if your program is a web application, its
653 | interface could display a "Source" link that leads users to an archive
654 | of the code.  There are many ways you could offer source, and different
655 | solutions will be better for different programs; see section 13 for the
656 | specific requirements.
657 | 
658 |   You should also get your employer (if you work as a programmer) or school,
659 | if any, to sign a "copyright disclaimer" for the program, if necessary.
660 | For more information on this, and how to apply and follow the GNU AGPL, see
661 | <https://www.gnu.org/licenses/>.
662 | 


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