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Groups > comp.lang.javascript > #21313

Re: loop through an arry

From Ken <usenet-so@abdiassoftware.com>
Newsgroups comp.lang.javascript
Subject Re: loop through an arry
Date 2013-09-12 19:45 -0500
Organization Abdias Software
Message-ID <l0tnar$rnh$1@speranza.aioe.org> (permalink)
References <l0tb6o$8a5$1@dont-email.me> <l0tc62$3pr$1@speranza.aioe.org> <GgsYt.30492$VU.28941@fx05.iad>

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On 12.09.2013 18:39, Daniel Pitts wrote:
> On 9/12/13 2:35 PM, Ken wrote:
>> need to squeeze out all you can of the browser (which in case you would
>> use a *while* loop in any case) there is no real problem using your
>> approach.
> while and for loops should be identical in performance. They are merely
> different syntax for the same operations.

Well.. it do depend on browser and implementation (such as JIT) but in 
general while loops are faster as seen here (with most browsers):

http://jsperf.com/fastest-array-loops-in-javascript/32

Disclaimer: I didn't make the test.

-- 
Ken Fyrstenberg
Abdias Software
http://abdiassoftware.com/
(remove usenet- from address)

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Thread

loop through an arry "Tony Johansson" <johansson.andersson@telia.com> - 2013-09-12 23:19 +0200
  Re: loop through an arry Adrián Espinosa <mortuuslordofdeads@gmail.com> - 2013-09-12 14:30 -0700
    Re: loop through an arry Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-09-13 03:17 +0200
      Re: loop through an arry Stefan Weiss <krewecherl@gmail.com> - 2013-09-13 04:27 +0200
        Re: loop through an arry Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-09-13 05:23 +0200
          Re: loop through an arry Stefan Weiss <krewecherl@gmail.com> - 2013-09-13 05:36 +0200
      Re: loop through an arry "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-09-13 09:48 +0200
  Re: loop through an arry Ken <usenet-so@abdiassoftware.com> - 2013-09-12 16:35 -0500
    Re: loop through an arry Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-09-12 16:39 -0700
      Re: loop through an arry Ken <usenet-so@abdiassoftware.com> - 2013-09-12 19:45 -0500
        Re: loop through an arry Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-09-13 11:18 -0700
          Re: loop through an arry Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-09-14 01:49 +0200
            Re: loop through an arry Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-09-13 17:06 -0700

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