【JavaScript】 call、apply重写bind方法

        let obj = {
            age:26,
        }

        function Person(name, sex) {
            console.log(this);
            console.log(this.age);
            console.log(name, sex);
        }


        Function.prototype.bindToApply = function(context){
            let _self = this,
                _slice = Array.prototype.slice，
　　　　　　　　　tFun = function(){};
            let args = _slice.call(arguments, 1);

            let fn = function(){
                let allArgs = _slice.call(arguments);
                _self.apply(this instanceof _self ? this : context, args.concat(allArgs));
            }

            tFun.prototype = _self.prototype;
　　　　　　　fn.prototype = new tFun();

            return fn;
        }

        // 测试一
        // Person.bind(obj, "测试")("男");
        // Person.bindToApply(obj, "测试")("男");

        // 测试二
        // let obj2 = Person.bindToApply(obj, "测试");
        // new obj2(‘男‘);
        
        // let obj2 = Person.bind(obj, "张三");
        // new obj2(‘男‘);