Prototype and inheritance

As has been briefly mentioned previously, inheritance in JavaScript is archived by using prototypes of constructor functions. In JavaScript, a prototype is an object that provides shared properties for other objects. And only a function object has a prototype because only a function object is callable and can create other objects. In ES6, arrow functions don't have prototypes. We will discuss that later.

You can think of a function as a factory and its prototype is the specification of the products that the factory manufactures. Every time you call a function with the new keyword, you place an order for its product. And the factory will produce it according to how it is specified in the prototype.

Now, let's see ...

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