The strange behaviour of $.extend'ing a prototype in IE
Has anyone noticed some problems with $.extend()-ing prototype, and
attempting to override existing methods?
Take this example:
var MyObj = function() {};
$.extend(MyObj.prototype, {
toString: function() { return 'Hello'; }
});
var obj = new MyObj();
console.log(obj.toString());
In Firefox, and other browsers, we get: 'Hello'
In IE (6), we get: '[object Object]'
But, we can extend MyObj.prototype in IE these ways:
MyObj.prototype.toString = ...
or,
MyObj.prototype['toString'] = ...
or,
MyObj.prototype = {
toString: ...
};
all work in IE!
Any ideas why $.extend doesn't work?