Remove an array-Javascript

Question

I have an array like this:

var animals=["cat","dog","snake","rhino"];

But sometimes I have to delete this array(remove it from the dom). I have tried animals.remove; and $(animals).remove() and animals.remove() but none of them did the trick.Any ideas?

var animals=["cat","dog","snake","rhino"]; animals = []; or animals.length = 0 — Nishit Maheta, Dec 06 '14 at 11:54
doing that will just clear the array.What i want is to make that array inaccessible(return undefined) — stranger4js, Dec 06 '14 at 11:58
You want to delete *one specific position* of this array or make something like a *free(animals)* as we do in C ? — Hilder Vitor Lima Pereira, Dec 06 '14 at 11:58
if you want to clear your array see here : http://stackoverflow.com/questions/1232040/empty-an-array-in-javascript . If you want to delete it, see here : http://stackoverflow.com/questions/16963066/javascript-how-to-delete-a-variable — scraaappy, Dec 06 '14 at 12:00

Suchit kumar · Accepted Answer · 2014-12-06T12:12:57.387

3

var animals=["cat","dog","snake","rhino"];

then to clear it do:

animals=[];

or

animals.length=0;

or

while(animals.length > 0) {
   animals.pop();
}

edited Dec 06 '14 at 12:12

answered Dec 06 '14 at 11:56

Suchit kumar

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Why would someone need a loop to clear an array..? – T J Dec 06 '14 at 12:07
@TJ please see this:http://jsperf.com/empty-javascript-array looping one is faster than animals=[]; – Suchit kumar Dec 06 '14 at 12:11
That's interesting... – T J Dec 06 '14 at 12:18

score 2 · Answer 2 · edited Dec 06 '14 at 12:01

2

Just Clear The Array

Using This 2 Methods

animals.length =0
animals=[];

edited Dec 06 '14 at 12:01

T J

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answered Dec 06 '14 at 11:56

Dhaval

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score 2 · Answer 3 · answered Dec 06 '14 at 11:59

2

Just assign the animals array to a value undefined and the array data will be dereferenced and garbage collected.

Donot try to call delete operator that is explicit removal.

animals = undefined OR

animals = void 0

Thanks

answered Dec 06 '14 at 11:59

Kiba

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@AmitJoki You haven't came across [``..?](http://stackoverflow.com/q/134845/2333214) ;) – T J Dec 06 '14 at 12:04
@TJ ah I have but not in this for :) – Amit Joki Dec 06 '14 at 12:09

Remove an array-Javascript

3 Answers3