ECMAScript
ECMAScript is the standardized scripting language specification that forms the basis for JavaScript, defining core syntax, types, statements, keywords, and built-in objects. It is maintained by Ecma International and updated regularly to introduce new features and improvements. JavaScript implementations in browsers and environments like Node.js adhere to ECMAScript standards, ensuring cross-platform compatibility.
Developers should learn ECMAScript features to write modern, efficient, and maintainable JavaScript code, as new versions (e.g., ES6/ES2015+) introduce enhancements like arrow functions, classes, modules, and async/await. This is essential for web development, server-side programming with Node.js, and staying current with industry best practices. Understanding ECMAScript helps avoid deprecated patterns and leverage performance optimizations.