Prototype chain

The implicit stereotype of the object points to the display stereotype of the constructor, and the implicit stereotype of the function’s display stereotype points to the parent display stereotype.

Prototype inheritance is a modification of the prototype chain.

Common objects also conform to the prototype chain. We can use the following code to look at __proto__ in a.

var a = {
    name:"xxx",
    age:12
}
console.log(a)
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