Overview
ECMAScript (ES) is the standard upon which JavaScript is based. ES6 (also known as ECMAScript 2015) was a major update that introduced many modern features that are now standard in web development.
Key ES6+ Features
- Arrow Functions: A concise syntax for writing functions.
- Classes: Syntactic sugar over prototypal inheritance.
- Modules: Native support for importing and exporting code (
import/export). - Destructuring: A convenient way to extract values from arrays and objects.
- Template Literals: Enhanced string literals with support for multi-line strings and interpolation.
Evolution
New versions of ECMAScript are released annually, continuously adding features like optional chaining, nullish coalescing, and top-level await.