Martin Ottenwaelter

You can add or overwrite a class property using the mixin method on the class prototype. The following example dynamically adds a keyForParentView method on the SC.View class without modifying SproutCore’s source code:

SC.View.prototype.mixin({
  keyForParentView: function() {
    var parentView = this.get('parentView'),
        key;
    for (key in parentView) {
      if (this === parentView[key]) return key;
    }
    return null;
  }
});

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