Possible Duplicate:
Remove item from array by value | JavaScript
How can I remove dog from the below array using Javascript. I do not want to use index if I can avoid it but rather the word dog instead.
["cat","dog","snake"]
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What, "do it for me"? No. Go do some research.Lightness Races in Orbit– Lightness Races in Orbit2012-02-01 18:01:16 +00:00Commented Feb 1, 2012 at 18:01
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2This has been answered here: stackoverflow.com/questions/3954438/…Andrew Ellis– Andrew Ellis2012-02-01 18:01:50 +00:00Commented Feb 1, 2012 at 18:01
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1@Andrew: Good find... voted to close.Felix Kling– Felix Kling2012-02-01 18:03:50 +00:00Commented Feb 1, 2012 at 18:03
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stackoverflow.com/a/3954451/465546qwertymk– qwertymk2012-02-01 18:03:51 +00:00Commented Feb 1, 2012 at 18:03
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1 Answer
Given an array:
var arr = ["cat", "dog", "snake"];
Find its index using the indexOf function:
var idx = arr.indexOf("dog");
Remove the element from the array by splicing it:
if (idx != -1) arr.splice(idx, 1);
The resulting array will be ["cat", "snake"].
Note that if you did delete arr[idx]; instead of splicing it, arr would be ["cat", undefined, "snake"], which might not be what you want.
