How To Clone A Prototype With Property Methods?

I am using the Typed.React library which includes a method to extend one prototype definition with that of another: function extractPrototype(clazz) { var proto = {}; for (

Solution 1:

I think you are looking for the new ES6 Object.assign function.

Of course there's a simpler fix to your problem - just don't access and set properties, copy their property descriptors:

functionextractPrototype(clazz) {
    var proto = {};
    for (var key in clazz.prototype) {
        Object.defineProperty(proto, key, Object.getOwnPropertyDescriptor(clazz.prototype, key));
    }
    return proto;
}