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Groups > comp.lang.javascript > #27118
| Newsgroups | comp.lang.javascript |
|---|---|
| Subject | Re: Remove leading zeros in index of array |
| From | "Evertjan." <exxjxw.hannivoort@inter.nl.net> |
| References | (2 earlier) <XnsA466D2BA96C99eejj99@194.109.6.166> <6de32517-372c-4126-8d1d-9aad9d9f592e@googlegroups.com> <XnsA466D7B70FBAeejj99@194.109.6.166> <9b97720c-9c4c-4b06-beb0-22fb5bb664e8@googlegroups.com> <XnsA466DBDDAD8BFeejj99@194.109.6.166> |
| Date | 2015-03-23 21:49 +0100 |
| Message-ID | <XnsA466DE0906FE4eejj99@194.109.6.166> (permalink) |
"Evertjan." <exxjxw.hannivoort@inter.nl.net> wrote on 23 mrt 2015 in
comp.lang.javascript:
> jonas.thornvall@gmail.com wrote on 23 mrt 2015 in comp.lang.javascript:
>
>>> ========================
>>> var a = [3,0,7,0,1,0,0,0]
>>>
>>> while (a[a.length-1]==0) a.pop();
>>>
>>> alert(a);
>>> ========================
>>>
>> Thank you, i will try.
>
> Since pop() returns what is popped,
> you could try this less efficient,
> but perhaps also enjoyable way:
>
> ====================
> var a = [3,0,7,0,1,0,0,0];
> var b = a.slice(); // copy array a to b
>
> while (b.pop() == 0) {a.pop()};
>
> alert(a);
> ====================
Or push the popped nonzero element back:
=================
var a = [3,0,7,0,1,0,0,0], temp;
while ( (temp = a.pop()) == 0) {};
a.push(temp);
alert(a);
=================
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)
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Remove leading zeros in index of array jonas.thornvall@gmail.com - 2015-03-23 04:57 -0700
Re: Remove leading zeros in index of array jonas.thornvall@gmail.com - 2015-03-23 10:03 -0700
Re: Remove leading zeros in index of array Scott Sauyet <scott.sauyet@gmail.com> - 2015-03-23 10:32 -0700
Re: Remove leading zeros in index of array Tim Streater <timstreater@greenbee.net> - 2015-03-23 18:36 +0000
Re: Remove leading zeros in index of array "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-03-23 20:42 +0100
Re: Remove leading zeros in index of array jonas.thornvall@gmail.com - 2015-03-23 12:58 -0700
Re: Remove leading zeros in index of array "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-03-23 21:12 +0100
Re: Remove leading zeros in index of array jonas.thornvall@gmail.com - 2015-03-23 13:16 -0700
Re: Remove leading zeros in index of array "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-03-23 21:36 +0100
Re: Remove leading zeros in index of array "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-03-23 21:49 +0100
Re: Remove leading zeros in index of array "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-03-23 21:58 +0100
Re: Remove leading zeros in index of array Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2015-03-24 15:41 +0100
Re: Remove leading zeros in index of array Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-03-24 20:21 +0100
Re: Remove leading zeros in index of array Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2015-03-24 20:45 +0100
Re: Remove leading zeros in index of array Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-03-24 20:47 +0100
Re: Remove leading zeros in index of array Scott Sauyet <scott.sauyet@gmail.com> - 2015-03-24 13:37 -0700
Re: Remove leading zeros in index of array Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2015-03-25 00:01 +0100
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