javascript吧 关注：269,315贴子：906,436
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楼主标题是问句？还是描述 ,apply 和 call 主要是在参数处理上不一样。
apply:
apply(this:Object,[参数]:Array)
var obj = new Object();
var func1 = function(a,b){alert("func1:"+(this === window)+","+(a+b))};
var func2 = function(a,b){alert("func2:"+(this === obj)+","+(a+b))};
func1(1,2);//func1:true,3
func2.apply(obj,[1,2]);//func2:true,3
call:
call(this:Object,参数1,参数2...参数n)
var obj = new Object();
var func1 = function(a,b){alert("func1:"+(this === window)+","+(a+b))};
var func2 = function(a,b){alert("func2:"+(this === obj)+","+(a+b))};
func1(1,2);//func1:true,3
func2.call(obj,1,2);//func2:true,3
apply(this:Object,[参数]:Array)
var obj = new Object();
var func1 = function(a,b){alert("func1:"+(this === window)+","+(a+b))};
var func2 = function(a,b){alert("func2:"+(this === obj)+","+(a+b))};
func1(1,2);//func1:true,3
func2.apply(obj,[1,2]);//func2:true,3
call:
call(this:Object,参数1,参数2...参数n)
var obj = new Object();
var func1 = function(a,b){alert("func1:"+(this === window)+","+(a+b))};
var func2 = function(a,b){alert("func2:"+(this === obj)+","+(a+b))};
func1(1,2);//func1:true,3
func2.call(obj,1,2);//func2:true,3
