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Introduction to Mastering ReactJS

Getting Started with ReactJS

Understanding Components in ReactJS

Handling Events in ReactJS

Managing State and Props in ReactJS

Component Lifecycle and Hooks in ReactJS

JSX & Conditional Rendering in ReactJS

Styling React Components

Fragments & Lists in ReactJS

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Download Notes

Understanding Components in ReactJS

Key Topics Covered:

1) Functional Components vs Class Components: Understand the differences and when to use each type of component.

2) Creating Functional Components: Dive into the syntax and create your first functional component.

3) Creating Class Components: Dive into the syntax and create your first class component.

4) Using JSX: Explore the power of JSX, making your code more readable and expressive.

5) Composing Components: Learn the art of composing smaller components to build powerful, modular UIs.

6) Passing Data Through Props: Master the technique of passing data between components using props.

Understanding Components in ReactJS

Updated App.js File:

App.js


import React from 'react';
import './App.css';

const Header = () => <header>This is a header.</header>

const Footer = () => <footer>This is a footer.</footer>

const HelloWorld = () => {
    return (<h1>This is a functional component.</h1>)
}

class Greet extends React.Component {
    render() {
        return <h2>Welcome, to class component.</h2>
    }
}

const ParentComp = () => {
    const msg = "Hello from parent component.";
    return <ChildComp text={msg} />
};

const ChildComp = (props) => {
    return <p>{props.text}</p>
};

function App() {
    return (
        <div>
            <Header />
            <HelloWorld />
            <Greet />
            <ParentComp />
            <Footer />
        </div>
    );
}

export default App;