User:Shaver/ES4 FAQ: Difference between revisions

User:Shaver/ES4 FAQ (view source)

61 bytes added , 1 November 2007

Confirmed users

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 * opt-in facilities such as new keywords, which will not affect programs unless the new ES4 capabilities are explicitly requested
 * bug fixes to match prevailing (often: all) browser support, such that the specification better reflects what developers can actually expect from implementations; programs that run in the real world today will be unaffected, obviously, as this is codification of existing practice
-* bug fixes to match user expectation, where the ES3 behaviour was a trap for the unwary, and not useful in its specified form; the classic example is how <tt>this</tt> is bound in nested functions, which is one of the most confusing and anger-inducing defects in the ES3 specification.
+* bug fixes to match user expectation, where the ES3 behaviour was a trap for the unwary, and not useful in its specified form; the classic example is how <a href="http://javascript.crockford.com/recommend.html"><tt>this</tt> is bound in nested functions</a>, which is one of the most confusing and anger-inducing defects in the ES3 specification.
 A complete description of all incompatibilities between ES4 and ES3 (as specified; note again that many of the changes represent codification of what is <i>actually</i> implemented in virtually all engines) is available at XXX.