JavaScript frameworks typically include features like data handling, user interface components, and communication with servers or APIs. They provide a foundation for building scalable, maintainable, and efficient web applications by enforcing coding patterns and conventions. Examples of popular JavaScript frameworks include React, Angular, and Vue.js. These frameworks enable developers to create dynamic, interactive, and responsive web applications with ease.
react
React is a JavaScript library for creating user interfaces.
The react
package contains only the functionality necessary to define React components. It is typically used together with a React renderer like react-dom
for the web, or react-native
for the native environments.
Note: by default, React will be in development mode. The development version includes extra warnings about common mistakes, whereas the production version includes extra performance optimizations and strips all error messages. Don't forget to use the production build when deploying your application.
import { useState } from 'react';
import { createRoot } from 'react-dom/client';
function Counter() {
const [count, setCount] = useState(0);
return (
<>
<h1>{count}</h1>
<button onClick={() => setCount(count + 1)}>
Increment
</button>
</>
);
}
const root = createRoot(document.getElementById('root'));
root.render(<App />);