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Groups > comp.lang.javascript > #32525
| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
|---|---|
| Newsgroups | comp.lang.javascript |
| Subject | Re: setInterval |
| Date | 2017-02-07 04:36 +0100 |
| Organization | PointedEars Software (PES) |
| Message-ID | <2203914.Sgy9Pd6rRy@PointedEars.de> (permalink) |
| References | (3 earlier) <daeac930-8fcd-48c9-b280-75144f751b0e@googlegroups.com> <8e741582-e2a8-4713-b49d-6bd5a50a8317@googlegroups.com> <fb53f70d-b831-4f1e-b290-eaad38124c77@googlegroups.com> <ac8011b3-9496-4559-a42b-c656798bfc44@googlegroups.com> <87h947e7f5.fsf@bsb.me.uk> |
Ben Bacarisse wrote:
> jonas.thornvall@gmail.com writes:
> <snip>
>>> > > > > > var interval_1 = setInterval("COUNTDOWN();",1000);
>>> […]
>>> > > > > > if(mycount<1) clearInterval(interval_1);
>>> […]
>> Well it work but
>
> I'm surprised that works. The first argument of setInterval should be a
> function not a string.
The string argument is historic because there were no function expressions
when this method was introduced in Netscape 2.0, JavaScript 1.0 (since
JavaScript 1.4 it is no longer part of the programming language, but of the
language-independent Window API).
And yes, it is better to use a Function instance reference, for two reasons:
1. it is safer: nobody can replace the function to be called and have it
executed instead;
2. it is more efficient: this is a kind of “hidden eval()” (IIRC that was
the term used)
--
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.
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setInterval jonas.thornvall@gmail.com - 2017-02-05 23:26 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-05 23:30 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 00:17 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 00:24 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 00:36 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 01:10 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 01:20 -0800
Re: setInterval Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-06 14:10 +0000
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 11:25 -0800
Re: setInterval Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-06 21:12 +0000
Re: setInterval Silvio <silvio@internet.com> - 2017-02-06 22:15 +0100
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 14:17 -0800
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:50 +0100
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 20:57 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 21:15 -0800
Re: setInterval "Julio P. Di Egidio" <julio@diegidio.name> - 2017-02-07 06:22 +0100
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 22:09 -0800
Re: setInterval Julio Di Egidio <julio@diegidio.name> - 2017-02-06 22:27 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 22:45 -0800
Re: setInterval Jake Jarvis <pig_in_shoes@yahoo.com> - 2017-02-07 11:13 +0100
Re: setInterval Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-02-07 17:23 +0100
Re: setInterval Julio Di Egidio <julio@diegidio.name> - 2017-02-07 11:54 -0800
Re: setInterval Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-02-07 21:54 +0100
Re: setInterval Julio Di Egidio <julio@diegidio.name> - 2017-02-07 13:50 -0800
Re: setInterval Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-02-07 23:19 +0100
Re: setInterval Julio Di Egidio <julio@diegidio.name> - 2017-02-07 15:33 -0800
Re: setInterval Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-02-09 00:23 +0100
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-07 11:33 +0100
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:28 +0100
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:26 +0100
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:24 +0100
Re: setInterval Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-02-07 04:36 +0100
Re: setInterval Silvio <silvio@internet.com> - 2017-02-06 16:13 +0100
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 12:10 -0800
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 12:27 -0800
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:16 +0100
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 14:28 -0800
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:45 +0100
Re: setInterval Tim Streater <timstreater@greenbee.net> - 2017-02-06 21:25 +0000
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:19 +0100
Re: setInterval JJ <jj4public@vfemail.net> - 2017-02-06 20:07 +0700
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 16:00 +0100
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 11:06 -0800
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:08 +0100
Re: setInterval jonas.thornvall@gmail.com - 2017-02-06 14:26 -0800
Re: setInterval "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-02-06 23:41 +0100
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