1 Array.prototype.mapA = function(fun /*, thisp*/)
2 {
3 var len = this.length;
4 if (typeof fun != "function")
5 throw new TypeError();
6 var res = new Array(len);
7 var thisp = arguments[1];
8 for (var i = 0; i < len; i++)
9 {
10 if (i in this)
11 res[i] = fun.call(thisp, this[i], i, this);
12 }
13 return res;
14 };
15
16 var ss = [1,2,3,4];
17 var b = ss.mapA(function(item){
18 return item+3;
19 });
20 //console.log(b);
21
22 function BubbleSort(array,cb) {
23 var length = array.length;
24 for (var i = length - 1; i > 0; i--) { //用于缩小范围
25 for (var j = 0; j < i; j++) { //在范围内进行冒泡，在此范围内最大的一个将冒到最后面
26 if(cb.call(array,array[j],array[j+1])>0){
27 var temp = array[j];
28 array[j] = array[j+1];
29 array[j+1] = temp;
30 }
31 }
32 }
33 return array;
34 }
35 Array.prototype.sortA = function(fun /*, thisp*/){
36 var len = this.length;
37 if (typeof fun != "function")
38 throw new TypeError();
39 var res = new Array(len);
40 res = BubbleSort(this,fun);
41 return res;
42 };
43 var sss = [32,23,5,95,4];
44 var bb= sss.sortA(function(a,b){return a-b});
45 console.log(bb);
