React js: The Ultimate Beginner's Guide to Learn React js Programming Step by Step - 2020 by Peterson Kathleen

Author:Peterson, Kathleen [Peterson, Kathleen]
Language: eng
Format: epub
Publisher: mEm lnc
Published: 2020-06-24T16:00:00+00:00

main.js

- Focus here -

import React from 'react';

import ReactDOM from 'react-dom';

import App from './App.jsx';

ReactDOM.render(<App/>, document.getElementById('app'));

Note : Please note that we use the key = {i} inside

Map () function. This will only help re-activate the necessary items instead of re-introducing the entire menu when something is ready to be changed. It is a great performance boost for more dynamically created items.

Chapter III

ReactJS - Validate extensions

Ownership verification is a useful way to force correct use of

Ingredients. This will help during the development to avoid errors and

Future problems, as soon as the app becomes bigger. Also

It makes the code more readable as we can see how each component should be used.

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