function person(age) { this.age = age; } person.prototype.sayhi = function (x, y) { console.log((x + y) + ":====>" + this.age); //是实例对象 }; function student(age) { this.age = age; } var per = new person(10); //实例对象 var stu = new student(100); //实例对象 //sayhi方法是per实例对象的 per.sayhi.apply(stu, [10, 20]);//30:====>100 per.sayhi.call(stu, 10, 20);//30:====>100
function person(age) { this.age=age; } person.prototype.play=function () { console.log(this+"====>"+this.age); }; function student(age) { this.age=age; } var per=new person(10); var stu=new student(20); //复制了一份 var ff=per.play.bind(stu); ff();
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vue源码实战render.js与$nextTick的异步调用
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