This article mainly introduces some information about the understanding of the JS prototype chain. If you need a friend, you can refer to the prototype chain to understand it. There are also a lot of online materials, when I can't sleep at night, I
Before entering the main body, I must first say that I know the prototype of JS this thing twists the process.
Baidu JS prototype article, first look, W3school about prototype introduction:
Do you think this concept is suitable for the
Here we will discuss the relationship between the object's internal prototype (_ proto _) and the prototype of the constructor.
1. All Constructors/functions _ proto _ point to Function. prototype, which is an Empty function (Empty Function)
Constructor: constructor of an object. It is a function.
Prototype: the prototype of the constructor. Only functions have this attribute.
Isprototypeof: If object a exists in the original model chain of object OBJ, A. isprototypeof (OBJ) returns
Prototype chain to understand a bit around, online data is also a lot, every night when I always like to find some prototype chain on the Internet and closure of the article look, the effect is excellent.
Don't dwell on the jargon, it's really not
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