ECMAScript is a scripting-language specification standardized by Ecma International in ECMA-262 and ISO/IEC 16262. JavaScript is the most well-known implementation of ECMAScript. ECMAScript 5 introduced features like strict mode, JSON support, and new array methods. ECMAScript 6 (also known as ECMAScript 2015) introduced significant new syntax and features including classes, modules, arrow functions, template literals, let and const, iterators, generators, promises, destructuring, and more. These versions are used to develop interactive websites, web applications, and server-side applications using Node.js.
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