<script>
var arr=["1","2","3","2","4","3"];
var res=unique(arr);
console.log(res);
// 数组去重
function unique(arr){
var arr2 = arr.sort();
var res = [arr2[0]];
for(var i=1;i<arr2.length;i++){
if(arr2[i] !== res[res.length-1]){
res.push(arr2[i]);
}
}
return res;
}
</script>