var ary=[12,23,67,23,6,7,8,12]var obj={};for(var i=0;i<ary.length;i++){ var cur=ary[i]; if(obj[cur]===cur){ ary[i]=ary[ary.length-1]; i--; ary.length--; } obj[cur]=cur;}
数组去重
原文：http://www.cnblogs.com/dou1234/p/7349693.html
