How to determine parent object from reference to a property
javascript, object, properties
Solution
No, there's no back-reference like that in JavaScript. What gets passed into a function is a value -- `5`, `"foo"`, an object reference, etc. There's no information on that value that tells you the value came from an object property, much less which object's property.
Problem
``` var object = {foo: 'bar'}; ``` Does JavaScript have a way to determine that `object.foo` is a property of `object` from inside a function to which `object.foo` is passed? In other words, is it possible to write a func that could do this: ``` getSource(object.foo) === object ```