Key features of JavaScript include: Event-driven programming: Executes code in response to user actions like clicks, keypresses, or page loads. DOM Manipulation: Alters HTML and CSS dynamically to update the content and style of web pages. Asynchronous programming: Supports timers, promises, async/await for non-blocking operations and handling API calls. Prototypal inheritance: Offers flexible object-oriented programming with prototype chains. Wide ecosystem: Includes popular libraries (e.g., jQuery, React) and frameworks (e.g., Angular, Vue) for building complex applications. Cross-platform support: Works on all modern browsers and various runtime environments. JavaScript is essential for front-end web development and increasingly used for back-end, mobile app development, and full-stack solutions, making it one of the most versatile and widely-used programming languages today.
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