数组去重方式

function norepeat(array){
    var newArray=[];
    for (var i in array){
        var current=array[i];
        var flag = false;
        for (var j in newArray){
            if (newArray[j]===current){
                flag=true;
                break;
            }
        }
        if (!flag){
            newArray.push(current);
        }
    }
    return newArray;        
}