How to use Object.create in js

Editor to share with you how to use Object.create in js, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

1. Create a new object with the Object.create () method, and use the existing object to provide the proto of the new object.

2. Provide two parameters, the first is the newly created prototype object, and the second is the object that adds properties to the newly created object.

Instance / / father object let father = {name: 'father', friend: [' abby', 'bob']} / / generate a new instance object child1let child1 = Object.create (father) / / change the value type property child1.name =' modified name'console.log (child1.name) / / modified name / / changed the reference type value child1.friend.push ('chely') console.log (child1.friend) / / [' abby' 'bob',' chely'] / / generate a new instance object child2let child2 = Object.create (father) console.log (child2.name) / / fatherconsole.log (child2.friend) / / ['abby',' bob', 'chely']

Knowledge point expansion:

Object.create () create method instance

Const person = {isHuman: false, printIntroduction: function () {console.log (`My name is ${this.name}. Am I human? ${this.isHuman} `);}}; const me = Object.create (person); me.name = 'Matthew'; / / "name" is a property set on "me", but not on "person" me.isHuman = true; / / inherited properties can be overwrittenme.printIntroduction (); / / expected output: "My name is Matthew. Am I human? true"

Running result

> "My name is Matthew. Am I human true"

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