According to this article it should be a Javascript 2.0 way to define class. However, I never saw that in practice. Thus the question. How to use class keyword and what is the difference between Javascript 1.x way of doing things?
+1
A:
You never saw it in practice because nothing supports JavaScript 2.0. That draft is from a specification that died before being anything other than draft.
David Dorward
2009-11-13 12:42:47
+6
A:
The reason you never saw the class keyword used in practice is that all the current implementations of JavaScript are 1.x.
JavaScript 2.0 was merged into ECMAScript 4 which was rather unpopular and so never made it into the real world.
So to answer your question, how do you use the class keyword? You can't.
Dave Webb
2009-11-13 12:42:49
Thank you for your comment.Funny thing though. Visual studio 2008 recognizes it as a valid keyword when writing JavaScript file.
Vladimir Kocjancic
2009-11-13 13:16:37
@Validimir - VS2008 probably recognises the class keyword as you can use it in JScript.NET.
Dave Webb
2009-11-13 13:21:49
class (along with lots of other java keywords) is a reserved word so that, theoretically, the language can add support without breaking existing programs. There's a full list at https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Reserved_Words.
Matthew Crumley
2009-11-13 16:28:56