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This article mainly introduces "how to achieve inheritance in js". In daily operation, I believe many people have doubts about how to achieve inheritance in js. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubts of "how to achieve inheritance in js"! Next, please follow the editor to study!

Inheritance can be implemented in two ways

Class/extendsclass Animal {

Constructor (name) {

This.name = name

}

Hello () {

Console.log ('hello')

}

}

Class Dog extends Animal {

Constructor (name, say) {

Super (name)

This.say = say

}

} function/newfunction Animal (name) {

This.name = name

}

Animal.prototype.hello = () = > {

Console.log ('hello')

}

Function Dog (name, say) {

/ / 01 inherit attributes

Animal.call (this, name)

This.say = say

}

/ / 02 complete inheritance by connecting prototype chain

Dog.prototype = Object.create (Animal.prototype)

/ / 03 plus constructor

Dog.prototype.constructor = Dog

/ / Reflect.defineProperty (Dog.prototype, "constructor", {

/ / value: Dog

/ / enumerable: false, / / cannot be enumerated

/ / writable: true

/ /})

At this point, the study of "how to implement inheritance in js" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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