ES6 Modules
ES6 Modules are a standardized module system introduced in ECMAScript 2015 (ES6) for organizing and reusing JavaScript code across files. They allow developers to export functions, objects, or primitives from one module and import them into another, enabling better code structure, dependency management, and encapsulation. This feature is natively supported in modern browsers and Node.js, replacing older module patterns like CommonJS or AMD.
Developers should learn ES6 Modules to write modular, maintainable JavaScript applications, as they provide a clean syntax for splitting code into reusable components and managing dependencies explicitly. They are essential for modern web development with frameworks like React or Vue, and for building scalable Node.js applications, as they improve code readability, testing, and tree-shaking for optimization. Use them when working on projects that require code organization across multiple files or when targeting environments with native ES6 support.