React Components

Questions and Answers

Their ability to utilize lifecycle methods

To customize the behavior of a component

To embed JavaScript expressions inside JSX elements

It provides a way to write HTML-like code in JavaScript files Signup and view all the answers

JSX can be used to generate JavaScript code that creates React elements Signup and view all the answers

Study Notes

Functional Components: JavaScript functions that take in props and return JSX elements.
- Example: const Greeting = (props) => Hello, {props.name}!;
- Can be used with React Hooks to manage state and side effects.
Class Components: JavaScript classes that extend the React.Component class.
- Example: class Greeting extends React.Component { render() { return Hello, {this.props.name}!; } }
- Can have state and lifecycle methods.
Component Lifecycle: Methods that are called at different points during a component's life cycle.
- Examples: componentDidMount(), componentDidUpdate(), componentWillUnmount()
Props: Immutable values passed from a parent component to a child component.
- Can be used to customize the behavior of a component.
- Example: ``

JSX Syntax: A syntax extension for JavaScript that allows you to write HTML-like code in your JavaScript files.
- Example: const element = Hello, World!;
JSX Elements: The building blocks of JSX, which can be used to create React components.
- Example: <div>, , ``
JSX Attributes: Used to add properties to JSX elements.
- Example: <a href="https://www.example.com">Visit Example</a>
JSX Expressions: JavaScript expressions that can be embedded inside JSX elements.
- Example: Hello, {name}!
JSX and JavaScript: JSX can be used to generate JavaScript code that creates React elements.
- Example: const element = Hello, World!; compiles to const element = React.createElement("h1", null, "Hello, World!");

Functional Components are JavaScript functions that take in props and return JSX elements.
They can be used with React Hooks to manage state and side effects.
Example: const Greeting = (props) => Hello, {props.name}!;

Class Components are JavaScript classes that extend the React.Component class.
They can have state and lifecycle methods.
Example: class Greeting extends React.Component { render() { return Hello, {this.props.name}!; } }

Component Lifecycle refers to the methods that are called at different points during a component's life cycle.
Examples of lifecycle methods include componentDidMount(), componentDidUpdate(), and componentWillUnmount().

JSX Syntax is a syntax extension for JavaScript that allows you to write HTML-like code in your JavaScript files.
Example: const element = Hello, World!;

JSX Elements are the building blocks of JSX, which can be used to create React components.
Examples: , , ``

JSX Expressions are JavaScript expressions that can be embedded inside JSX elements.
Example: Hello, {name}!

JSX can be used to generate JavaScript code that creates React elements.
Example: const element = Hello, World!; compiles to const element = React.createElement("h1", null, "Hello, World!");