Question

I have an array of numbers:

var myArray:Array = [12345, 23456, 34567, 45678];

If I want to remove say, 34567 is there a clean efficient way to do it? I’m guessing I need to loop through the array, get the position of that value, then splice that position.

Answer 1

You could use Array.indexOf to check on which index the value can be found in the array. If not found, it will be -1. In my example, I keep looping and removing until the index will be -1.

function removeFromArray(list:Array, value:*):void
{
    if (!list || !list.length) return;
    var index:int;
    while((index = list.indexOf(value)) > -1)
    {
         list.splice(index, 1);
    }
}

// test scenario

var myArray:Array = [12345, 23456, 34567, 45678, 34567];

trace("before:" + myArray);
//before:12345,23456,34567,45678,34567

removeFromArray(myArray, 34567);

trace("after:" + myArray);
//after:12345,23456,45678