jQuery如何在第一个元素之前删除逗号？

Question

I am getting an array using jQuery push().But the there is a comma before first element.I need the array without comma for the first element(Need comma for rest of the elements).Any Idea?

Thanks

function delImg(newThis){
    $(newThis).parent().hide();
    var Id = $(newThis).siblings('.hidden').html();
    Ids.push(Id);
    alert(Ids);
    return Ids;

}

Answer 1

You are adding a empty element to array so you get , at starting

function delImg(newThis) {
    $(newThis).parent().hide();
    var Id = $(newThis).siblings('.hidden').html();
    if ($.trim(id) !== '') { //push to array if id value is not empty
        Ids.push(Id);
    }
    alert(Ids);
    return Ids;
}

---

Answer 2

function delImg(newThis) {
    $(newThis).parent().hide();
    var Id = $(newThis).siblings('.hidden').html().trim();
    if (Id !== '') {
        Ids.push(Id);
    }
    alert(Ids);
    return Ids;
}