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Form Handling - React Typing CST Test

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Form Handling — React Code

Demonstrates controlled form inputs and submission handling.

import React, { useState } from 'react';

const FormExample = () => {
	const [name, setName] = useState('');
	const handleSubmit = e => { e.preventDefault(); alert(`Hello, ${name}`); };
	return (
		<form onSubmit={handleSubmit}>
		<input value={name} onChange={e => setName(e.target.value)} placeholder="Enter name" />
		<button type="submit">Submit</button>
		</form>
	);
};

export default FormExample;

React Language Guide

React is a declarative, component-based JavaScript library for building user interfaces, primarily for single-page applications. It allows developers to create reusable UI components and manage application state efficiently.

Primary Use Cases

  • ▸Single-page web applications (SPAs)
  • ▸Dynamic user interfaces for web apps
  • ▸Mobile apps via React Native
  • ▸Reusable component libraries
  • ▸Interactive dashboards and admin panels

Notable Features

  • ▸Component-based architecture
  • ▸Virtual DOM for optimized rendering
  • ▸JSX syntax for combining HTML and JS
  • ▸One-way data binding (props)
  • ▸Hooks for state and lifecycle management

Origin & Creator

Developed by Jordan Walke at Facebook in 2013.

Industrial Note

React is specialized for building dynamic, responsive web and mobile UIs, particularly in SPA and complex front-end applications.

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