├── src
├── components
│ ├── UserList.jsx
│ ├── UserAddForm.jsx
│ └── UserItem.jsx
├── App.css
├── App.test.js
├── index.css
├── index.js
├── App.js
├── serviceWorker.js
└── logo.svg
├── public
├── robots.txt
├── favicon.ico
├── logo192.png
├── logo512.png
├── manifest.json
└── index.html
├── README.md
├── .gitignore
└── package.json
/src/components/UserList.jsx:
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/src/components/UserAddForm.jsx:
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/public/robots.txt:
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1 | # https://www.robotstxt.org/robotstxt.html
2 | User-agent: *
3 |
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/public/favicon.ico:
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https://raw.githubusercontent.com/razvancir96/react-curs02/HEAD/public/favicon.ico
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/public/logo192.png:
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https://raw.githubusercontent.com/razvancir96/react-curs02/HEAD/public/logo192.png
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/public/logo512.png:
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https://raw.githubusercontent.com/razvancir96/react-curs02/HEAD/public/logo512.png
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/src/App.css:
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1 | .app {
2 | /* vrem doar ca app sa ocupe toata pagina */
3 | height: 100vh;
4 | }
5 |
6 | .app h1 {
7 | margin-top: 0;
8 | }
9 |
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/src/App.test.js:
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1 | import React from 'react';
2 | import ReactDOM from 'react-dom';
3 | import App from './App';
4 |
5 | it('renders without crashing', () => {
6 | const div = document.createElement('div');
7 | ReactDOM.render(, div);
8 | ReactDOM.unmountComponentAtNode(div);
9 | });
10 |
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/README.md:
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1 | ## JavaScript Advanced - Curs 2
2 |
3 | Pentru a rula aceasta etapa (in linie de comanda):
4 |
5 | #### 1. `git clone https://github.com/razvancir96/react-curs02.git`
6 |
7 | #### 2. `cd react-curs02`
8 |
9 | #### 3. `npm install` (posibil sa dureze)
10 |
11 | #### 4. `npm start`
12 |
13 |
14 |
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/.gitignore:
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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 |
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/src/index.css:
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1 | body {
2 | box-sizing: border-box;
3 | margin: 0;
4 | font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
5 | "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
6 | sans-serif;
7 | -webkit-font-smoothing: antialiased;
8 | -moz-osx-font-smoothing: grayscale;
9 | }
10 |
11 | code {
12 | font-family: source-code-pro, Menlo, Monaco, Consolas, "Courier New",
13 | monospace;
14 | }
15 |
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/src/index.js:
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1 | import React from 'react';
2 | import ReactDOM from 'react-dom';
3 | import './index.css';
4 | import App from './App';
5 | import * as serviceWorker from './serviceWorker';
6 |
7 | ReactDOM.render(, document.getElementById('root'));
8 |
9 | // If you want your app to work offline and load faster, you can change
10 | // unregister() to register() below. Note this comes with some pitfalls.
11 | // Learn more about service workers: https://bit.ly/CRA-PWA
12 | serviceWorker.unregister();
13 |
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/public/manifest.json:
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1 | {
2 | "short_name": "React App",
3 | "name": "Create React App Sample",
4 | "icons": [
5 | {
6 | "src": "favicon.ico",
7 | "sizes": "64x64 32x32 24x24 16x16",
8 | "type": "image/x-icon"
9 | },
10 | {
11 | "src": "logo192.png",
12 | "type": "image/png",
13 | "sizes": "192x192"
14 | },
15 | {
16 | "src": "logo512.png",
17 | "type": "image/png",
18 | "sizes": "512x512"
19 | }
20 | ],
21 | "start_url": ".",
22 | "display": "standalone",
23 | "theme_color": "#000000",
24 | "background_color": "#ffffff"
25 | }
26 |
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/package.json:
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1 | {
2 | "name": "admin-panel",
3 | "version": "0.1.0",
4 | "private": true,
5 | "dependencies": {
6 | "react": "^16.10.2",
7 | "react-dom": "^16.10.2",
8 | "react-scripts": "3.2.0"
9 | },
10 | "scripts": {
11 | "start": "react-scripts start",
12 | "build": "react-scripts build",
13 | "test": "react-scripts test",
14 | "eject": "react-scripts eject"
15 | },
16 | "eslintConfig": {
17 | "extends": "react-app"
18 | },
19 | "browserslist": {
20 | "production": [
21 | ">0.2%",
22 | "not dead",
23 | "not op_mini all"
24 | ],
25 | "development": [
26 | "last 1 chrome version",
27 | "last 1 firefox version",
28 | "last 1 safari version"
29 | ]
30 | }
31 | }
32 |
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/src/components/UserItem.jsx:
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1 | // Intotdeauna importam React, pentru a putea folosi JSX (JS combinat cu HTML).
2 | import React from 'react';
3 |
4 | // Pentru o componenta care nu se schimba din momentul afisarii
5 | // este de ajuns sa facem o functie care returneaza un div.
6 | function UserItem(props) {
7 | // ATENTIE! props este un obiect creat de REACT care are chei 'atributele' de HTML
8 | // folosite la crearea componentei UserItem (vezi in App.js)
9 | // pentru a extrage atributele obiectului props, folosim object destructuring (vezi Recapitulare)
10 | const {name, email} = props;
11 | // ATENTIE! intotdeauna este returnat un singur element HTML
12 | // (de obicei un div), care le contine pe celelalte!
13 | return(
14 |
15 | {/* Folosim {} pentru a integra variabile/expresii de JS in taguri de HTML. */}
16 |
{ name }
17 |
{ email }
18 |
19 | );
20 | }
21 |
22 | // Pentru a putea fi utilizata in alte locuri, componenta trebuie exportata.
23 | export default UserItem;
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/public/index.html:
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
12 |
13 |
17 |
18 |
27 | React App
28 |
29 |
30 |
31 |
32 |
42 |
43 |
44 |
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/src/App.js:
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1 | import React from 'react';
2 | // nu uitati sa importati componentele folosite!
3 | import UserItem from './components/UserItem';
4 | import './App.css';
5 |
6 | // ATENTIE! Initial, in create-react-app, App era o functie.
7 | // Sintaxa in care App e o functie e pentru Hooks, iar noi nu o vom folosi.
8 | // App este o componenta complexa, ale carei componente se vor
9 | // modifica pe parcurs => trebuie sa fie o clasa!
10 | class App extends React.Component {
11 | // In constructor este apelat mai intai super, iar apoi este initializat state-ul
12 | constructor() {
13 | super();
14 | this.state = {
15 | background: 'white'
16 | };
17 | }
18 |
19 | // changeColor e o metoda a clasei, care primeste ca parametru un event.
20 | changeColor(event) {
21 | // VA INCURAJEZ pe parcursul cursului sa dati console.log de fiecare data cand aveti
22 | // o eroare sau o nelamurire in legatura cu datele prelucrate. In event.target.value
23 | // vedem ca avem culoarea selectata de utilizator, in format hexazecimal. Vom atribui
24 | // aceasta culoare background-ului aplicatiei.
25 | console.log(event.target.value);
26 | // ATENTIE! niciodata nu schimbam state-ul direct! (this.state = ...)
27 | // Pentru a schimba state-ul, folosim metoda setState, care primeste ca parametru un obiect/functie.
28 | // In cazul in care a primit un obiect, cheile obiectului sunt cheile state-ului ale
29 | // caror valori se doresc a fi actualizate.
30 | this.setState({background: event.target.value});
31 | }
32 |
33 | // render se apeleaza de fiecare data cand se modifica state-ul!
34 | render() {
35 | return(
36 | // Prin style putem trimite CSS catre componenta.
37 | // ATENTIE! style este un obiect JS (primele acolade sunt de la sintaxa JSX).
38 | // Tot din cauza JSX, nu putem avea atributul de HTML 'class'. In React e className.
39 |
40 |
HELLO WORLD!
41 | {/* Componenta UserItem este "instantiata"(creata).
42 | In fisierul UserItem.jsx ea este doar declarata!! */}
43 | {/* Atributele name si email sunt puse intr-un obiect (DE CATRE REACT!!)
44 | si trimise catre componenta UserItem.jsx */}
45 |
46 |
47 | {/* input type color ne permite sa selectam o culoare. Cand selectam noua culoare
48 | se declanseaza evenimentul onChange, echivalent evenimentului onchange din HTML, sau
49 | a lui change, folosit de addEventListener. Functia executata atunci este changeColor,
50 | din clasa in care ne aflam. */}
51 | {/* AVEM NEVOIE DE ARROW FUNCTION! De ce? Altfel cand se apeleaza changeColor,
52 | this-ul nu mai este intreaga clasa! Vom discuta la cursul 4 mai multe despre this
53 | in React.
54 | De asemenea, trebuie sa pasam EVENTUL functiei changeColor, pentru a putea
55 | ulterior sa prelucram valoarea selectata de utilizator.
56 | Foarte important este sa realizam ca lui onChange ii trimitem o functie(metoda),
57 | nu un apel de functie! onChange va apela el respectiva functie cand se va schimba
58 | ceva! */}
59 | this.changeColor(event)}/>
60 |
61 | );
62 | }
63 | }
64 |
65 | export default App;
66 |
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/src/serviceWorker.js:
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1 | // This optional code is used to register a service worker.
2 | // register() is not called by default.
3 |
4 | // This lets the app load faster on subsequent visits in production, and gives
5 | // it offline capabilities. However, it also means that developers (and users)
6 | // will only see deployed updates on subsequent visits to a page, after all the
7 | // existing tabs open on the page have been closed, since previously cached
8 | // resources are updated in the background.
9 |
10 | // To learn more about the benefits of this model and instructions on how to
11 | // opt-in, read https://bit.ly/CRA-PWA
12 |
13 | const isLocalhost = Boolean(
14 | window.location.hostname === 'localhost' ||
15 | // [::1] is the IPv6 localhost address.
16 | window.location.hostname === '[::1]' ||
17 | // 127.0.0.1/8 is considered localhost for IPv4.
18 | window.location.hostname.match(
19 | /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
20 | )
21 | );
22 |
23 | export function register(config) {
24 | if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
25 | // The URL constructor is available in all browsers that support SW.
26 | const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
27 | if (publicUrl.origin !== window.location.origin) {
28 | // Our service worker won't work if PUBLIC_URL is on a different origin
29 | // from what our page is served on. This might happen if a CDN is used to
30 | // serve assets; see https://github.com/facebook/create-react-app/issues/2374
31 | return;
32 | }
33 |
34 | window.addEventListener('load', () => {
35 | const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
36 |
37 | if (isLocalhost) {
38 | // This is running on localhost. Let's check if a service worker still exists or not.
39 | checkValidServiceWorker(swUrl, config);
40 |
41 | // Add some additional logging to localhost, pointing developers to the
42 | // service worker/PWA documentation.
43 | navigator.serviceWorker.ready.then(() => {
44 | console.log(
45 | 'This web app is being served cache-first by a service ' +
46 | 'worker. To learn more, visit https://bit.ly/CRA-PWA'
47 | );
48 | });
49 | } else {
50 | // Is not localhost. Just register service worker
51 | registerValidSW(swUrl, config);
52 | }
53 | });
54 | }
55 | }
56 |
57 | function registerValidSW(swUrl, config) {
58 | navigator.serviceWorker
59 | .register(swUrl)
60 | .then(registration => {
61 | registration.onupdatefound = () => {
62 | const installingWorker = registration.installing;
63 | if (installingWorker == null) {
64 | return;
65 | }
66 | installingWorker.onstatechange = () => {
67 | if (installingWorker.state === 'installed') {
68 | if (navigator.serviceWorker.controller) {
69 | // At this point, the updated precached content has been fetched,
70 | // but the previous service worker will still serve the older
71 | // content until all client tabs are closed.
72 | console.log(
73 | 'New content is available and will be used when all ' +
74 | 'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
75 | );
76 |
77 | // Execute callback
78 | if (config && config.onUpdate) {
79 | config.onUpdate(registration);
80 | }
81 | } else {
82 | // At this point, everything has been precached.
83 | // It's the perfect time to display a
84 | // "Content is cached for offline use." message.
85 | console.log('Content is cached for offline use.');
86 |
87 | // Execute callback
88 | if (config && config.onSuccess) {
89 | config.onSuccess(registration);
90 | }
91 | }
92 | }
93 | };
94 | };
95 | })
96 | .catch(error => {
97 | console.error('Error during service worker registration:', error);
98 | });
99 | }
100 |
101 | function checkValidServiceWorker(swUrl, config) {
102 | // Check if the service worker can be found. If it can't reload the page.
103 | fetch(swUrl)
104 | .then(response => {
105 | // Ensure service worker exists, and that we really are getting a JS file.
106 | const contentType = response.headers.get('content-type');
107 | if (
108 | response.status === 404 ||
109 | (contentType != null && contentType.indexOf('javascript') === -1)
110 | ) {
111 | // No service worker found. Probably a different app. Reload the page.
112 | navigator.serviceWorker.ready.then(registration => {
113 | registration.unregister().then(() => {
114 | window.location.reload();
115 | });
116 | });
117 | } else {
118 | // Service worker found. Proceed as normal.
119 | registerValidSW(swUrl, config);
120 | }
121 | })
122 | .catch(() => {
123 | console.log(
124 | 'No internet connection found. App is running in offline mode.'
125 | );
126 | });
127 | }
128 |
129 | export function unregister() {
130 | if ('serviceWorker' in navigator) {
131 | navigator.serviceWorker.ready.then(registration => {
132 | registration.unregister();
133 | });
134 | }
135 | }
136 |
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/src/logo.svg:
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