Objects
Let’s learn about JS objects.
We'll cover the following...
What is an object?
A JavaScript object is essentially a set of key-value pairs, also called slots. In these key-value pairs names can be property names, function names, or keys of a map. JavaScript objects are different from classical object-oriented or Unified Modeling Language (UML) objects. In particular, they don’t have to instantiate a class, and they can have their own instance-level methods. That way, they not only have ordinary property slots, but method slots as well. In addition, JS objects may also have key-value slots. So, these objects may have three different kinds of slots, while classical objects (called instance specifications in ...