JS Prototypes and prototype chains

Source: Internet
Author: User

Everything in JS is Object, object is divided into function object and ordinary object, function object is the object created by new function (), others are ordinary object.

In JS, the function has a property prototype, point to the function prototype object prototype, the function has prototype, the normal object is not, but has the __proto__ attribute.

What the hell is the prototype chain?

in fact, JS does not inherit, but __proto__ has played a similar role in succession. All of the object origins we know are empty objects, and we call this empty objectOriginal Object. All objects will eventually point to the original object through __proto__ backtracking.


JS Prototypes and prototype chains

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