(2) Walk through examples in objectproperties.js ... Clip: Instance vs. Prototype Properties Clip: A Graphical Overview of Prototypes Course: JavaScript Objects, Prototypes, and Classes (Jim Cooper) ...

For example, arrays, objects, functions, and dates are mutable in JavaScript. You can add, remove, or update their properties or elements without creating a new object. For example, you can push a ...

The syntax for naming a property follows the conventional JavaScript ... Calling this with the map from the previous example results in the original JavaScript object being returned. The second ...

2- By default all the standard objects in JavaScript are extensible (i.e. Function ... will return true and we can add new properties, else false is returned. Example: <script> var abc = {}; // object ...