?The 4th edition of ECMA-262 was abandoned due to disagreement over the direction. ECMAScript 4 was very much a different language that introduced static typing, true class-based inheritance, and other paradigms from more traditional programming languages.
At around the same time, a smaller group proposed what was called ECMAScript 3.1 as incremental improvements on top of the existing ECMAScript spec. When the decision was made to move forward with ECMAScript 3.1 over ECMAScript 4, ECMAScript 3.1 was renamed to ECMAScript 5 so as not to be confused with the very different ECMAScript 4 spec. More information here: http://ajaxian.com/archives/ecmascript-harmony-coming-together-after-oslo -Nicholas From: Discussion of JavaScript Sent: Sunday, December 05, 2010 11:33 AM To: jsmentors@jsmentors.com Subject: [JSMentors] Why the fourth edition of ECMAScript was not completedand not published? ECMAScript Edition 4 the Ecma standard number "ECMA-262 Edition 4" was reserved but not used in the Ecma publication process. Therefore "ECMA-262 Edition 4" as an Ecma International publication does not exist. The present fifth edition of ECMAScript was published as "ECMA-262 5th edition". Why the fourth edition of ECMAScript was not completed and not published? -------------------------------------------------------------------------------- _______________________________________________ JSMentors mailing list JSMentors@jsmentors.com http://jsmentors.com/mailman/listinfo/jsmentors_jsmentors.com
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