面试必问的数组去重复

若是你如今正在面试请保持冷静的头脑，从容应对；由于头脑一热可能该会的也不会了，下面贴出来一段简单的数组去重复的方法，写的有点简单仅供你们参考，若是不足之处请多赐教；

var ary = [1,2,3,2,1,4,4,423,323,"1","323"];
    function getSingleArray(ary){
        var obj = {},
            newArray = [];
        if(typeof ary === "object"){
            for(var i=0; i<ary.length; i++){
                var cur = ary[i];
                if(!!obj[cur] && typeof obj[cur]==typeof cur){
                    continue;
                }else{
                    obj[cur] = cur;
                    newArray.push(obj[cur]);
                }
            }
        }
        return newArray;
    }
    var b = getSingleArray(ary);
    console.log("新数组:",b);
    console.log(ary);

只是简单的判断，后续会愈来愈完善判断数组的类型