32241 2009-12-07 13:22:34 -0800 implement Object.isExtensible() / preventExtensions() 2011-03-31 10:30:46 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) All All RESOLVED FIXED ES5, InRadar P2 Normal --- 32239 32240 0 pmuellr webkit-unassigned arv erights mike oliver skyul webmaster oldest_to_newest 169451 0 pmuellr 2009-12-07 13:22:34 -0800 For EcmaScript 5, Object.isExtensible() is required, but not yet supported by JSC 169771 1 pmuellr 2009-12-08 13:34:54 -0800 changed title to note preventExtensions() is the "setter" to isExtensible() being the getter. 236750 2 mrowe 2010-06-11 02:40:03 -0700 <rdar://problem/8082778>