求大神 ，数组去重复问题

[sinat_32314273]

大神们 小弟小白有个问题 ，比如数组["男","女","不确定","男","女","不确定""男","女","不确定"]，我想把里面”男 “，”女“，”不确定“ 不重复的取出来，想要得到[”男“，”女 “，”不确定“]，不知道如何写起 ，请大神帮助

[木头海上漂]

each或者for双重循环呗

[Hello World,]

<script>
var x=["男","女","不确定","男","女","不确定","男","女","不确定"];
var o={};
for(var i=0;i<x.length;i++){
	o[x[i]]=x[i];
}
for(var key in o){
	alert(key);
}
</script>

[可能黑客]

<script> var x=["男","女","不确定","男","女","不确定","男","女","不确定"]; var y=[]; for(var i=0;i<x.length;i++) { //不重复的 if(y.toString().indexOf(x[i].toString())<=-1) y.push(x[i]); } </script> //随手写的，没有测试，你自己试下

[斯洛文尼亚旅游]

        var arr = ["男", "女", "不确定", "男", "女", "不确定", "男", "女", "不确定"];
        var kv = {};
        kv[arr[arr.length - 1]] = true;
        for (var i = arr.length - 2; i >= 0; i--) {
            console.log(i)
            if (kv[arr[i]]) arr.splice(i, 1)
            else { kv[arr[i]] = true; }
        }
        alert(arr)