繼承的五種方式
阿新 • • 發佈：2018-02-23
prototype xtend function 混入 post create es6 extend proto 1.混入式繼承
var obj1 = {} var obj2 = { name: ‘ys‘, age: 18 } for(var k in obj2){ obj1[k] = obj2[k] }
2.原型繼承
// 方法一: function Person() { }; var obj1 = {} var obj2 = { name: ‘ys‘, age:18 } obj2 = new Person Person.prototype = obj2 // 方法二: function Person() { }; var obj1 = {}for(var k in obj2){ Person.prototype[k] = obj2[k] }var obj2 = { name: ‘ys‘, age:18 }
3.經典繼承
var obj1 = {} var obj2 = { name: ‘ys‘, age: 19 } obj1 = Object.create(obj2)
4.es6 class extends繼承
var obj1 = {} var obj2 = { name: ‘ys‘, age: 19 } class obj1 extends obj2 {// 讓obj1繼承了obj2的屬性和方法 }
繼承的五種方式