Is there any reason why one should be used over the other?
e.g.
var arData=['a','b','c'];
arData.slice(1,1);//removes 'b'
var arData=['a','b','c'];
delete arData[1];//removes 'b'
Brian Tompsett - 汤莱恩
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asked Apr 25, 2012 at 23:05
Francisc
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possible duplicate of JavaScript Array Delete ElementsPeeHaa– PeeHaa2012年04月25日 23:08:38 +00:00Commented Apr 25, 2012 at 23:08
2 Answers 2
delete leaves you with [ 'a', undefined, 'c' ]
splice leaves you with [ 'a', 'c' ]
slice doesn't do anything to the original array :) But it returns [ 'b' ] in your code
answered Apr 25, 2012 at 23:07
user578895
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delete only makes that certain location of the array undefined but the array still contains 3 items: ['a',undefined,'c']
the other way to do it is splice and not slice. splice totally removes that item and it's location, so you end up with ['a','c']
answered Apr 25, 2012 at 23:08
Joseph
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