On Mar 9, 6:57 am, Jim Higson <j...@wikizzle.org> wrote:
> On Friday 06 March 2009 15:26:49 kangax wrote:
[...]
> > It's possible that we'll introduce a custom `hasOwnProperty` in later
> > revisions.
>
> Makes sense.
> if( !hasOwnProperty )
> hasOwnProperty = function hasOwnProperty(){ ... };
I was thinking of something like:
var hasOwnProperty = (function(){
var hop = Object.prototype.hasOwnProperty;
if (hop) {
return function(obj, prop) {
return hop.call(obj, prop);
}
}
return function(obj, prop) {
if (obj) {
var c = obj.constructor;
if (c && c.prototype) {
return obj[prop] !== c.prototype[prop];
}
}
return null;
}
})();
This fallback not bullet-proof, but should cover most of the cases.
[...]
--
kangax
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