asabeneh
4 years ago
parent
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<div align="center">
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<h1> 30 Days Of React: Project</h1>
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<a class="header-badge" target="_blank" href="https://www.linkedin.com/in/asabeneh/">
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<img src="https://img.shields.io/badge/style--5eba00.svg?label=LinkedIn&logo=linkedin&style=social">
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</a>
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<a class="header-badge" target="_blank" href="https://twitter.com/Asabeneh">
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<img alt="Twitter Follow" src="https://img.shields.io/twitter/follow/asabeneh?style=social">
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</a>
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<sub>Author:
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<a href="https://www.linkedin.com/in/asabeneh/" target="_blank">Asabeneh Yetayeh</a><br>
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<small> October, 2020</small>
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</sub>
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</div>
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[<< Day 27](../27_Ref/27_ref.md) | [Day 29>>]()
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# Projects
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Create Read Delete and Update(CRUD)
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Most applications use CRUD operations. For instance, you have been Reading(R) data by fetching from the cat API and countries API. You have been creating(C) when you use input field and item. However, we did not implement updating and deleting functionality so far. Since CRUD is a common operation almost in all big applications it is good to know how to implement it. In this section, we will develop a small application which has creating, reading, updating and deleting functionality.
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The todo list is a very common example to learn and master CRUD operations in almost every libraries and frameworks. I would also recommend you to develop a todo list, note taking or a tinny blog application for the sake of mastering CRUD.
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In this section, you and I will develop an old version of twitter post.
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# Exercises
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🎉 CONGRATULATIONS ! 🎉
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[<< Day 27](../27_Ref/27_ref.md) | [Day 29>>]()
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# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
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# dependencies
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/node_modules
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/.pnp
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.pnp.js
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# testing
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/coverage
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# production
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/build
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# misc
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.DS_Store
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.env.local
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.env.development.local
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.env.test.local
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.env.production.local
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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# 30 Days of React App: Day 25
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In the project directory, you can run to start the project
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### `npm start`
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{
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"name": "30-days-of-react",
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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": "^4.2.4",
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"@testing-library/react": "^9.3.2",
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"@testing-library/user-event": "^7.1.2",
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"react": "^16.13.1",
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"react-dom": "^16.13.1",
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"react-scripts": "3.4.3"
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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": "react-app"
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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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}
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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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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<link
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href="https://fonts.googleapis.com/css?family=Montserrat:300,400,500|Roboto:300,400,500&display=swap"
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rel="stylesheet"
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/>
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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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<title>30 Days Of React App</title>
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<style>
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/* == General style === */
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* {
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box-sizing: border-box;
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padding: 0;
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margin: 0;
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}
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html,
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body {
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height: 100%;
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line-height: 1.5;
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font-family: 'Montserrat';
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font-weight: 300;
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color: black;
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}
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.root {
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min-height: 100%;
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position: relative;
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}
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.header-wrapper,
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.main-wrapper,
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.footer-wrapper {
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width: 85%;
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margin: auto;
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}
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.header-wrapper,
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.main-wrapper {
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padding: 10px;
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margin: 2px auto;
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}
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h1 {
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font-size: 70px;
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font-weight: 300;
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}
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h2,
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h3 {
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font-weight: 300;
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}
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header {
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background-color: #61dbfb;
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padding: 25;
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padding: 10px;
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}
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main {
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padding: 10px;
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padding-bottom: 60px;
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/* Height of the footer */
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}
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ul {
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margin-left: 15px;
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}
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ul li {
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list-style: none;
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}
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footer {
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position: absolute;
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bottom: 0;
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width: 100%;
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height: 60px;
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/* Height of the footer */
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background: #6cf;
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}
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.footer-wrapper {
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font-weight: 400;
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text-align: center;
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line-height: 60px;
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}
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.user-card {
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margin-top: 10px;
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}
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.user-card > img {
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border-radius: 50%;
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width: 14%;
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}
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</style>
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</head>
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<body>
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<div id="root"></div>
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</body>
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</html>
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export const tenHighestPopulation = [
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{ country: 'World', population: 7693165599 },
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{ country: 'China', population: 1377422166 },
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{ country: 'India', population: 1295210000 },
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{ country: 'United States of America', population: 323947000 },
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{ country: 'Indonesia', population: 258705000 },
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{ country: 'Brazil', population: 206135893 },
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{ country: 'Pakistan', population: 194125062 },
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{ country: 'Nigeria', population: 186988000 },
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{ country: 'Bangladesh', population: 161006790 },
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{ country: 'Russian Federation', population: 146599183 },
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{ country: 'Japan', population: 126960000 },
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]
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After Width: | Height: | Size: 20 KiB |
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After Width: | Height: | Size: 82 KiB |
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After Width: | Height: | Size: 18 KiB |
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After Width: | Height: | Size: 12 KiB |
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import React, { useRef } from 'react'
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import ReactDOM from 'react-dom'
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const App = (props) => {
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const ref = useRef(null)
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const onClick = () => {
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ref.current.style.backgroundColor = '#61dbfb'
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ref.current.style.padding = '50px'
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ref.current.style.textAlign = 'center'
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}
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return (
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<div className='App'>
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<h1 ref={ref}>How to style HTML from the DOM tree using useRef</h1>
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<button onClick={onClick}>Style it</button>
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</div>
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)
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}
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const rootElement = document.getElementById('root')
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ReactDOM.render(<App />, rootElement)
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/* == General style === */
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* {
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box-sizing: border-box;
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padding: 0;
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margin: 0;
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}
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html,
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body {
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height: 100%;
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line-height: 1.5;
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font-family: 'Montserrat';
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font-weight: 300;
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color: black;
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}
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.root {
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min-height: 100%;
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position: relative;
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}
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.header-wrapper,
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.main-wrapper,
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.footer-wrapper {
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width: 85%;
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margin: auto;
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}
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.header-wrapper,
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.main-wrapper {
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padding: 10px;
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margin: 2px auto;
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}
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h1 {
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font-size: 70px;
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font-weight: 300;
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}
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h2,
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h3 {
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font-weight: 300;
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}
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header {
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background-color: #61dbfb;
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padding: 25;
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padding: 10px;
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}
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main {
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padding: 10px;
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padding-bottom: 60px;
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/* Height of the footer */
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}
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ul {
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margin-left: 15px;
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}
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ul li {
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list-style: none;
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}
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footer {
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position: absolute;
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bottom: 0;
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width: 100%;
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height: 60px;
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/* Height of the footer */
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background: #6cf;
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}
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.footer-wrapper {
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font-weight: 400;
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text-align: center;
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line-height: 60px;
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}
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.user-card {
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margin-top: 10px;
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}
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.user-card > img {
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border-radius: 50%;
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width: 14%;
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}
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import { useState, useEffect } from 'react'
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export const useFetch = (url) => {
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const [data, setData] = useState([])
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useEffect(() => {
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const fetchData = async () => {
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try {
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const response = await fetch(url)
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const data = await response.json()
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setData(data)
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} catch (error) {
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console.log(error)
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}
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}
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fetchData()
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}, [url])
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return data
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}
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export default useFetch
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