ECMAScript is a JavaScript standard developed by Ecma International. Since 2015, major versions have been published every June. ECMAScript 2024, the 15th...

ECMAScript (/ˈɛkməskrɪpt/; ES) is a standard for scripting languages, including JavaScript, JScript, and ActionScript. It is best known as a JavaScript...

a core component of the Node.js runtime system. They are also called ECMAScript engines, after the official name of the specification. With the advent...

the abandoned fourth edition of the ECMAScript standard. It must be compiled for .NET Framework version 2 or version 4, but static type annotations are...

version history, version history of the Java programming language History of the Java platform History of JavaScript ECMAScript (JavaScript) version history...

program can seamlessly consume JavaScript. The compiler can target all ECMAScript versions 5 and above, transpiling modern features like classes and arrow functions...

Legend:   Unsupported version   Old version, still maintained   Latest version Internet Explorer Features of Internet Explorer History of Internet Explorer Versions that...

speed of the ECMAScript (JavaScript) engine. It is proprietary and only available as a part of the Opera browsers. A succession of ECMAScript engines have...

Crockford originally asserted that JSON is a strict subset of JavaScript and ECMAScript, his specification actually allows valid JSON documents that are not valid...

high-level, often just-in-time–compiled language that conforms to the ECMAScript standard. It has dynamic typing, prototype-based object-orientation, and...

implementation of advanced ECMAScript (of which "JavaScript" is an implementation) and the HTML Document Object Model was poor. Version 3.6 was released on May...

NET assemblies. The implementation of Managed JScript conforms to the ECMAScript 3.0 specification, and Microsoft asserts that it is 250 times faster than...

Mandelin. SpiderMonkey implements the ECMA-262 specification (ECMAScript). ECMA-357 (ECMAScript for XML (E4X)) was dropped in early 2013. SpiderMonkey is...

parts such as Promises have indeed made it into ECMAScript itself. The part after the slash is the version. When a proposal is in contention, each individual...

the scripting language for HyperCard. It is now an implementation of ECMAScript (meaning it is a superset of the syntax and semantics of the language...

and safely serialize and deserialize JSON objects, as specified by the ECMAScript 3.1 draft. Full CSS 3 selector support has been added. Firefox 3.5 uses...

Firefox from versions 29 to 56. It uses the Goanna rendering engine. The browser supports modern web browsing, including support for ECMAScript 6 on release...

– a safer C variant D Dart DASL – based on Java E ECMAScript AssemblyScript ActionScript ECMAScript for XML JavaScript JScript TypeScript GLSL Go HLSL...

collector (GC) for ArkTS/JS objects, a standard library that conforms to the ECMAScript specification, an interpreter for running the ARK Bytecode (abc) generated...

distributions. Java 24 is the version current as of March 2025[update]. Java 8, 11, 17, and 21 are long-term support versions still under maintenance. James...

supports include: CSS Level 3 DOM HTML5 JavaScript (ECMAScript ES6 or superior, currently ECMAScript 2021 ES12), implemented in SpiderMonkey MathML RDF...

vector graphics format is possible through various means: Scripting: ECMAScript is a primary means of creating animations and interactive user interfaces...

remained incompatible. These versions of the DOM became known as the "Intermediate DOM". After the standardization of ECMAScript, the W3C DOM Working Group...

OCaml, Python as of version 3.0, Raku, Ruby, Tcl as of version 9, PHP as of version 8.1, Rust and ECMAScript as of ECMAScript 6 (the prefix 0 originally...

called ECMAScript. The first version of the standard was published in 1997. Subsequent releases of JavaScript and JScript would implement the ECMAScript standard...

book from O'Reilly Media. As of version 1.80 (January 2025), Rhino supports Java 11 and up, and supports many ECMAScript ES6/ES2015 features. Rhino converts...

inclusion in its ECMAScript 262 test suite. Some Sputnik tests however have been found to have issues and do not conform to ECMAScript 5th edition specification...

more advanced support of HTML 4, CSS, DOM, and ECMAScript by Internet Explorer starting with version 4, the more up-to-date Internet Explorer 5.0 became...

language that cross-compiles to JavaScript, has a Python-inspired syntax. ECMAScript–JavaScript borrowed iterators and generators from Python. GDScript, a...

systems Groovy, Java-like, object-oriented scripting JavaScript (later: ECMAScript), originally limited to running in a web browser to dynamically modify...