Talk about JavaScript inheritance

Source: Internet
Author: User

Tag: class This super Color const CTI function implements Func implementation inheritance

There are roughly 5 ways that JavaScript implementations are inherited:

1th, inheritance is implemented by constructor function

        function parent () {            this. Name = ' parent '        }        function child () {            Parent.call (this)            the. Type = ' child '        } 

2nd, inheritance through the prototype chain

        function parent () {            this. Name = ' parent '        }        function Child () {              this. Type = "Child"        }        new  Parent ()        = Child

3rd, combination of 1th and 2nd methods

        function parent () {            this. Name = ' parent '        }        function child () {            Parent.call (this)            the. Type = ' child '        }        New  Parent ()        = Child

The 4th, the optimization of the 3rd, is also the recommended way

        function parent () {            this. Name = ' parent '        }        function child () {            Parent.call (this)            the. Type = ' child '        }        =  Object.create (parent.prototype)        = Child

5th, using ES6 syntax

        class Parent {            constructor () {                this. Name = ' parent'            }        }        class Child Extends Parent {            constructor () {                super ()                this. Type = ' child '            }        } 

Talk about JavaScript inheritance

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