Starting Day3, went over create-react-app, recreated code from day2 with React, need to start exercises next

solutions/day-03/30-days-of-react/.gitignore

@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

solutions/day-03/30-days-of-react/README.md

@@ -0,0 +1,70 @@
+# Getting Started with Create React App
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the app in the development mode.\
+Open [http://localhost:3000](http://localhost:3000) to view it in your browser.
+
+The page will reload when you make changes.\
+You may also see any lint errors in the console.
+
+### `npm test`
+
+Launches the test runner in the interactive watch mode.\
+See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
+
+### `npm run build`
+
+Builds the app for production to the `build` folder.\
+It correctly bundles React in production mode and optimizes the build for the best performance.
+
+The build is minified and the filenames include the hashes.\
+Your app is ready to be deployed!
+
+See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
+
+### `npm run eject`
+
+**Note: this is a one-way operation. Once you `eject`, you can't go back!**
+
+If you aren't satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
+
+Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.
+
+You don't have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.
+
+## Learn More
+
+You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
+
+To learn React, check out the [React documentation](https://reactjs.org/).
+
+### Code Splitting
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
+
+### Analyzing the Bundle Size
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
+
+### Making a Progressive Web App
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
+
+### Advanced Configuration
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
+
+### Deployment
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
+
+### `npm run build` fails to minify
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)

solutions/day-03/30-days-of-react/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "30-days-of-react",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/react": "^13.4.0",
+    "@testing-library/user-event": "^13.5.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-scripts": "5.0.1",
+    "web-vitals": "^2.1.4"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

solutions/day-03/30-days-of-react/public/index.html

@@ -0,0 +1,103 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <link
+      href="https://fonts.googleapis.com/css?family=Montserrat:300,400,500|Roboto:300,400,500&display=swap"
+      rel="stylesheet"
+    />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <title>30 Days of React App</title>
+    <style>
+      /* == General style === */
+      * {
+      box-sizing: border-box;
+      padding: 0;
+      margin: 0;
+      }
+  
+      html,
+      body {
+      height: 100%;
+      line-height: 1.5;
+      font-family: 'Montserrat';
+      font-weight: 300;
+      color: black;
+      }
+  
+      .root {
+      min-height: 100%;
+      position: relative;
+      }
+  
+      .header-wrapper,
+      .main-wrapper,
+      .footer-wrapper {
+      width: 85%;
+      margin: auto;
+      }
+  
+      .header-wrapper,
+      .main-wrapper {
+      padding: 10px;
+      margin: 2px auto;
+      }
+  
+      h1 {
+      font-size: 70px;
+      font-weight: 300;
+      }
+  
+      h2,
+      h3 {
+      font-weight: 300;
+      }
+  
+      header {
+      background-color: #61dbfb;
+      padding: 10px;
+      }
+  
+      main {
+      padding: 10px;
+      padding-bottom: 60px;
+      background-color: #F3F0F5;
+      /* Height of the footer */
+      }
+
+      ul {
+      margin-left: 15px;
+      }
+  
+      ul li {
+      list-style: none;
+      }
+
+      img{
+        padding-top: 10px;
+      }
+  
+      footer {
+      position: absolute;
+      bottom: 0;
+      width: 100%;
+      height: 60px;
+      /* Height of the footer */
+      background: #6cf;
+      }
+      
+      .footer-wrapper {
+      font-weight: 400;
+      text-align: center;
+      line-height: 60px;
+      }
+    </style>
+  </head>
+  <body>
+    <div id="root"></div>
+  </body>
+</html>

solutions/day-03/30-days-of-react/src/index.js

@@ -0,0 +1,102 @@
+// Index.js
+// Import React, ReactDOM, and Image
+import React from 'react';
+import ReactDOM from 'react-dom';
+import Garfield from './images/img1.jpeg'
+
+// Get root from HTML file
+const rootElement = document.getElementById('root')
+
+
+// JSX element, header
+const welcome = 'Welcome to 30 Days Of React'
+const title = 'Getting Started React'
+const subtitle = 'JavaScript Library'
+const author = {
+  firstName: 'Jaspreet',
+  lastName: 'Chatha'
+}
+const date = 'Jan 9, 2023'
+
+const header = (
+  <header>
+    <div className='header-wrapper'>
+      {/* creating dynamic data */}
+      <h1>{welcome}</h1>
+      <h2>{title}</h2>
+      <h3>{subtitle}</h3>
+      <p>Student: {author.firstName} {author.lastName}</p>
+      <small>Date: {date}</small>
+    </div>
+  </header>
+)
+
+// JSX element, main
+const techs = ['HTML', 'CSS', 'JavaScript'];
+const techsFormatted = techs.map(tech=>{return <li key={tech}>tech</li>});
+
+const num1 = 3;
+const num2 = 2;
+
+const result = (
+  <p>
+    {num1} + {num2} = {num1 + num2}
+  </p>
+)
+
+const yearBorn = 1820;
+const currentYear = new Date().getFullYear();
+const age = currentYear - yearBorn;
+const personAge = (
+  <p>
+    {' '}
+    {author.firstName} {author.lastName} is {age} years old
+  </p>
+)
+
+// add an image 
+const user = (
+  <div>
+    <img src={Garfield} alt='Garfield Comic Strip'/> 
+  </div>
+)
+
+
+const main = (
+  <main>
+    <div className='main-wrapper'>
+      <p>Prerequisite to get started{' '} 
+        <strong>
+          <em>react.js:</em>
+        </strong>
+      </p>
+      <ul>{techsFormatted}</ul>
+      {result}
+      {personAge}
+      {user}
+    </div>
+  </main>
+)
+
+// JSX element, footer
+const copyright = 'Copyright 2023';
+
+const footer = (
+  <footer>
+    <div className='footer-wrapper'>
+      <p>{copyright}</p>
+    </div>
+  </footer>
+)
+
+
+// JSX element, app, container or parent
+const app =(
+  <div className='app'>
+    {header}
+    {main}
+    {footer}
+  </div>
+)
+// Render JSX on DOM 
+ReactDOM.render(app,rootElement);

solutions/day-03/studyNotes.md

@@ -0,0 +1,48 @@
+1. Module 
+    - function(s) that can be exported and imported when needed
+    - In React we import modules
+
+    ex: <!--  math.js -->
+        - export const addTwo = (a,b) => a+b;
+        - export default (function doSomeMath(){
+            return{
+                addTwo
+            }
+        }) 
+        <!-- index.js -->
+        <!-- imports the function with or without extension  -->
+        - import doSomeMath from './math.js'; <!-- this way when using DEFAULT in export -->
+        <!-- since addTwo has no default need to destructure it -->
+        - import {addTwo} from './math.js';
+
+2. Create-react-app
+- in command line: npx create-react-app 'folder name'
+- npm start to run react app on localhost 3000
+
+3. React boilerplate
+- 3 folders
+    - node_modules
+        - stores all node packages of the React app
+    - public
+        - index.html
+            - only HTML file in entire app
+        - favicon.ico
+            - icon file
+        - manifest.json
+            - used to make app a progressive web app
+        - other images
+            - open graph images 
+        - robots.txt 
+            - info if website allows web scraping
+    - src
+        - App.css, index.css
+            - CSS stylesheets
+        - index.js
+            - file connects all components with index.html
+        - App.js
+            - file where most presentational components are imported
+        - serviceWorker.js
+            - used to add progressive web app features
+        - setupTests.js
+            - to write testing cases
+