element Asking for help, clarification, or responding to other answers. this is the only answer that considers my nested tree structure. Correctly dealing with closures and modularity in Javascript. I created this simple example for demonstration of the data structure I am dealing with. This method can remove any form of immutability, leading to bugs. How do I correctly clone a JavaScript object? The class starts the same as it was the last time we looked at it. It can call a function in the parent in the form window.opener.function_name() The parent code has the function that the child is calling : JavaScript doesn’t really have classes in a traditional sense and this is the way most people shoehorn them in. [ [ null, "A" ], [ "A", "B" ], [ "A", "C" ], Web Languages and Standards; JavaScript; Scripting Languages; 17 Comments. Unlike Array prototype methods like sort() and reverse() that are used on the array instance, Object methods are used directly on the Object constructor, and use the object instance as a parameter. ​. Stack Overflow for Teams is a private, secure spot for you and It is possible to start writing code that temporarily modifies the prototypes of built-in browser objects, but you should not do this unless you have a really good reason. Bye for now. Access Nested Objects Using Array Reduce. If a document contain frames (