ECMAScript
From MDC
(Redirected from ECMA-262)
ECMAScript is the scripting language that forms the basis of JavaScript. JavaScript is a superset of ECMAScript, i.e. JavaScript is ECMAScript plus some additional features. ECMAScript is standardized by the Ecma International organization in the ECMA-262 specification.
The latest version is ECMAScript 3rd edition. JavaScript 1.5 (and 1.6) is based off this version.
Work on ECMAScript 4th edition is currently underway. JavaScript 2.0 will be based off this version.