Inheritance with regarding static method #122

chaht01 · 2019-03-04T07:21:04Z

To inherit static method of the parent class, in es5, the child function's prototype link called __proto__ should be assigned as parent function itself. For example,

function Parent(){}
function Child(){}

Parent.sayHello = function(){
    console.log("hello");
}

Child.prototype = Object.create(Parent.prototype)
Child.prototype.constructor = Child

Child.sayHello() // Error

In the case of es6,

class Parent{
    static sayHello(){
        console.log("hello")
    }
}
class Child extends Parent{}
Child.sayHello() // "hello"

To solve this problem, the prototype link called __proto__ of Child should be defined as Parent .

function Parent(){}
function Child(){}

Parent.sayHello = function(){
    console.log("hello");
}

Child.prototype = Object.create(Parent.prototype)
Child.prototype.constructor = Child
Child.__proto__ = Parent
Child.sayHello() // Error

To inherit static method of the parent class, in es5, the child function's prototype link called `__proto__` should be assigned as parent function itself. For example,

Inheritance with regarding static method

8605468

To inherit static method of the parent class, in es5, the child function's prototype link called `__proto__` should be assigned as parent function itself. For example,

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Inheritance with regarding static method #122

Inheritance with regarding static method #122

chaht01 commented Mar 4, 2019

Inheritance with regarding static method #122

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Inheritance with regarding static method #122

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chaht01 commented Mar 4, 2019