请教：如何将b数组内的值传给a数组的下标

var a = ['aa','cc','ww','kkk','jj','ff'];
var b = [3,5,0,4,2,1];
var m = a.map(function(s,i){
return a[b[i]];
});
alert(m);

var a = ['aa','cc','ww','kkk','jj','ff'];
var b = [3,5,0,4,2,1];
var m = a.map(function(s,i,a){
return a[b[i]];
});
alert(m);

var a = ['aa','cc','ww','kkk','jj','ff'];
var b = [3,5,0,4,2,1];
var m = b.map(function(v){
// 在改一下。改成这样就好多了。
return a[v];
});
alert(m);

// @音晽ゞ﹎儛浀
// 你想要这个结果的 我可以写给你看 ww,ff,jj,aa,kkk,cc
// 另外 楼主 要求输出的是
kkk,ff,aa,jj,ww,cc
大哥 请看清楚
<script type="text/javascript">
var a = ['aa','cc','ww','kkk','jj','ff'];
var b = [3,5,0,4,2,1];
var o = {};
a.forEach(function(x,i){
o[x] = b[i];
});
var m = Object.keys(o).sort(function(a,b){
return o[a] - o[b];
});
alert(m);
</script>