How to remove item from array object in jquery

Question

How to remove item from jquery array object.

I used splice method as follows. But it slice next item of array[i].

    $.each(array, function (i, item) {
    var user = array[i];
    jQuery.each(array2, function (index, idata) {
        debugger
        if (idata.Id == user.UserId) {
            tempFlag = 1;
            return false; // this stops the each
        }
        else {
            tempFlag = 0;
        }
    });

    if (tempFlag != 1) {
     //removes an item here

        array.splice(user, 1);
    }
})

Can anyone tell me where i am wrong here?

score 5 · Answer 1 · edited May 23 '17 at 12:34

5

You should try this to remove element from array in jQuery:

jQuery.removeFromArray = function(value, arr) {
    return jQuery.grep(arr, function(elem, index) {
        return elem !== value;
    });
};

var a = [4, 8, 2, 3];

a = jQuery.removeFromArray(8, a);

Check this Link for more : Clean way to remove element from javascript array (with jQuery, coffeescript)

edited May 23 '17 at 12:34

Community

1
1

answered Feb 20 '12 at 12:55

Anand Soni

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That is clean, but not applicable to the question in its current form, as the code is not just looking for items in an array, it's looking for items in an array where another array contains an item where one property corresponds to a property of the item. – Guffa Feb 20 '12 at 12:59

score 4 · Accepted Answer · answered Feb 20 '12 at 12:53

You are using the value in user as index, i.e. array[i], instead of the value i.

$.each(array, function (i, item) {
  var user = array[i];
  jQuery.each(array2, function (index, idata) {
    debugger
    if (idata.Id == user.UserId) {
      tempFlag = 1;
      return false; // this stops the each
    } else {
      tempFlag = 0;
    }
  });

  if (tempFlag != 1) {
    //removes an item here
    array.splice(i, 1);
  }
});

You may get problems from removing items from the array that you are currently looping, though...

How to remove item from array object in jquery

2 Answers2