javascript - Is there a way to change the prototype of an object in Internet Explorer?

Question

In IE you can't use obj.__proto__ = some_proto, but you can go around this deficit by using inheritance through function, e.g.:

func = function(){}
func.prototype = proto
obj = new func

The problem with this roundabout is that old references to obj are lost and won't point to the new obj with proto as prototype. Is there anyway to change the prototype of existing objects in IE?

Answer 1

No, there isn't.

__proto__ is just a hack and you should never use it anyway (it's not a standard feature). It is currently not possible in JS to change the prototype of an existing object.

Related questions/answers: Changing prototype of an object which was created with literal initialization, https://stackoverflow.com/a/7223353/218196