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Commit cfe97b5

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create bar chart
Signed-off-by: Amit Amrutiya <amitamrutiya2210@gmail.com>
1 parent 0fe1809 commit cfe97b5

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‎React/bar-chart/package.json‎

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{
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"name": "faq-comp",
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"version": "0.1.0",
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"private": true,
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"dependencies": {
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"@testing-library/jest-dom": "^5.17.0",
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"@testing-library/react": "^13.4.0",
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"@testing-library/user-event": "^13.5.0",
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"react": "^18.2.0",
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"react-dom": "^18.2.0",
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"react-scripts": "5.0.1",
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"web-vitals": "^2.1.4"
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},
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"scripts": {
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"start": "react-scripts start",
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"build": "react-scripts build",
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"test": "react-scripts test",
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"eject": "react-scripts eject"
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},
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"eslintConfig": {
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"extends": [
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"react-app",
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"react-app/jest"
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]
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},
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"browserslist": {
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"production": [
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">0.2%",
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"not dead",
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"not op_mini all"
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],
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"development": [
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"last 1 chrome version",
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"last 1 firefox version",
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"last 1 safari version"
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]
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}
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}

‎React/bar-chart/public/favicon.ico‎

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‎React/bar-chart/public/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta name="theme-color" content="#000000" />
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<meta
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name="description"
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content="Web site created using create-react-app"
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/>
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<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
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<!--
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manifest.json provides metadata used when your web app is installed on a
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user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
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-->
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<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
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<!--
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Notice the use of %PUBLIC_URL% in the tags above.
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It will be replaced with the URL of the `public` folder during the build.
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Only files inside the `public` folder can be referenced from the HTML.
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Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
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work correctly both with client-side routing and a non-root public URL.
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Learn how to configure a non-root public URL by running `npm run build`.
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-->
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<title>React App</title>
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</head>
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<body>
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<noscript>You need to enable JavaScript to run this app.</noscript>
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<div id="root"></div>
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<!--
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This HTML file is a template.
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If you open it directly in the browser, you will see an empty page.
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You can add webfonts, meta tags, or analytics to this file.
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The build step will place the bundled scripts into the <body> tag.
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To begin the development, run `npm start` or `yarn start`.
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To create a production bundle, use `npm run build` or `yarn build`.
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-->
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</body>
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</html>

‎React/bar-chart/src/App.js‎

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import { useEffect } from "react";
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import { useState } from "react";
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function App() {
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const [freq, setFreq] = useState(undefined);
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const [yAxis, setYAxis] = useState([]);
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const fetchNumbers = async () => {
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const url =
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"https://www.random.org/integers/?num=200&min=1&max=10&col=1&base=10&format=plain&rnd=new";
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const res = await fetch(url);
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let data = await res.text();
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data = data.split("\n").filter(Boolean);
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console.log(data);
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const map = {};
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data?.forEach((item) => {
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if (map[item]) {
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map[item] = map[item] + 1;
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} else {
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map[item] = 1;
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}
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});
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setFreq(map);
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};
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console.log(freq);
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//preparing y-axis data
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// [30,20,10,0]
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useEffect(() => {
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if (freq) {
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const max = Math.max(...Object.values(freq));
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const maxVal = Math.ceil(max / 10) * 10;
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let arr = [];
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for (let i = maxVal / 10; i >= 0; i--) {
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//3,2,1,0
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arr.push(i * 10); //30,20,10,0
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}
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setYAxis(arr);
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}
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}, [freq]);
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console.log("yAxis ", yAxis);
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useEffect(() => {
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fetchNumbers();
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}, []);
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return (
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<div className="App">
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<div className="container">
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<div className="box">
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<div
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className="box-y-axis"
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style={{
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height: `${yAxis[0]}%`,
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}}
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>
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{yAxis?.map((val, idx) => (
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<div key={idx}>
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<span>{val}</span>
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</div>
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))}
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</div>
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{freq &&
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Object.entries(freq)?.map(([key, val]) => (
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<div className="box-x-axis">
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<div
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style={{
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height: `${val}%`,
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}}
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className="graph"
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></div>
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<div className="index">{key}</div>
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</div>
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))}
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</div>
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</div>
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</div>
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);
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}
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export default App;

‎React/bar-chart/src/index.css‎

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body {
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margin: 0;
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
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'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
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sans-serif;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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}
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code {
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font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
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monospace;
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}
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.App {
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height: 100vh;
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width: 100%;
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}
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.container{
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width: 100%;
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height: 100%;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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}
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.box{
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display: flex;
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border-left: 1px solid black;
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border-bottom: 1px solid black;
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width: 50%;
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height: 70%;
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position: relative;
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}
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.box-y-axis{
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display: flex;
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flex-direction: column;
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position: absolute;
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bottom: 0;
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left: -32px;
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justify-content: space-between;
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align-items: center;
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}
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.box-x-axis{
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flex: 1;
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text-align: center;
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position: relative;
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display: flex;
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}
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.graph{
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width: 20px;
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background-color: lightseagreen;
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transform: translateX((-50%));
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position: absolute;
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bottom: 0;
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left: 50%;
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}
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.index{
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position: absolute;
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bottom: -7%;
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align-self: center;
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left: 45%;
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}

‎React/bar-chart/src/index.js‎

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import React from 'react';
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import ReactDOM from 'react-dom/client';
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import './index.css';
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import App from './App';
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const root = ReactDOM.createRoot(document.getElementById('root'));
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root.render(
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<React.StrictMode>
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<App />
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</React.StrictMode>
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);

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