Understand inheritance, the prototype chain, and memory efficiency.
Tutor:Every JavaScript object has a private property which holds a link to another object called its prototype.
Trace the chain of inheritance.
JavaScript is a prototype-based language. This means objects can inherit properties from other objects.
Which property is used internally to link an object to its prototype?
Successfully linked objects via prototypes.
Mastered the concept of property shadowing.
Understood the internal [[Prototype]] link.
In JavaScript, objects have a special hidden property [[Prototype]]. It’s either null or references another object.
Instead of every instance of an object having its own copy of a method, we can put the method on the prototype. All instances will share that one single function, saving massive amounts of memory.