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Groups > comp.lang.javascript > #37385
| Newsgroups | comp.lang.javascript |
|---|---|
| Date | 2019-09-25 10:20 -0700 |
| References | (5 earlier) <qmfi5v$17i4$1@gioia.aioe.org> <8cb6e06e-8e1b-41e1-94df-436d86a91437@googlegroups.com> <qmfokj$6u6$1@gioia.aioe.org> <0f8cc81f-884a-45b7-b087-a960c8956912@googlegroups.com> <eivmoeptedold0agjpuptcne37buqvitb3@4ax.com> |
| Message-ID | <deeecb37-bca4-46bb-b6d2-6df0dcc36154@googlegroups.com> (permalink) |
| Subject | Re: A proposition for a conditional loop. |
| From | Jonas Thörnvall <jonas.thornvall@gmail.com> |
Den onsdag 25 september 2019 kl. 16:50:36 UTC+2 skrev John G Harris:
> On Wed, 25 Sep 2019 06:10:49 -0700 (PDT), Jonas Thörnvall
> <jonas.thornvall@gmail.com> wrote:
>
> <snip>
> >Is one should use do until instead of.... while-> if->break
> >How hard can it be to understand?
> >
> >z=midiEv+1;
> > while(z<nbrOfEV){
> > if(track[rectrack].midiMess[z].data1==track[rectrack].midiMess[midiEv].data1){
> > ctm.fillStyle = "#000a4d";
> > ctm.fillRect(scrollBarPos-FRONTOFFSET[midiEv]-barLength[midiEv]-6,(PistartX+keyHeight*88)-(keyHeight*(track[rectrack].midiMess[midiEv].data1-8))-1,barLength[midiEv]+6 ,keyHeight+2);
> > ctm.fillStyle = pcolor[track[rectrack].midiMess[midiEv].data1];
> > ctm.fillRect(scrollBarPos-FRONTOFFSET[midiEv]-barLength[midiEv],(PistartX+keyHeight*88)-(keyHeight*(track[rectrack].midiMess[midiEv].data1-8)), barLength[midiEv]+50,keyHeight);
> > break;
> > }
> > z++;
> > }
>
> To summarise, what Jonas if trying to do is :
>
> z = start;
> while (z < size)
> {
> if (arr[z].data == msg.data)
> {
> update_system_state();
> break
> }
> ++z;
> } // while
>
>
> A cleaner way to do it, one that seperates concerns, does find it,
> then use it :
>
> z = start;
> while ( (z < size) && (arr[z].data != msg.data) )
> ++z;
>
> if (z < size)
> {
> /* z is the value when found, if needed */
> update_system_state();
> }
Yeah John that is what it is about, but i still think that do until is much more readable.
do until (condition 1 met && condition 2 met....) { }
then { }
Nothing beats the clarity of that one not a single doubt what that one is about. I just think the semantics superior.
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A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-23 00:55 -0700
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-23 01:05 -0700
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-23 01:14 -0700
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-23 01:16 -0700
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-24 05:12 -0700
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-24 22:27 +0200
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-24 22:39 -0700
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-25 09:05 +0200
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-25 02:47 -0700
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-25 13:13 +0200
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-25 05:13 -0700
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-25 15:04 +0200
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-25 06:10 -0700
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-25 15:50 +0100
Re: A proposition for a conditional loop. Tim Streater <timstreater@greenbee.net> - 2019-09-25 16:00 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-25 10:20 -0700
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-25 10:26 -0700
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-25 19:18 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-25 12:19 -0700
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-26 10:48 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-26 04:38 -0700
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-26 18:05 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-26 10:54 -0700
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-27 10:06 +0100
Re: A proposition for a conditional loop. dr.j.r.stockton@gmail.com - 2019-09-27 02:34 -0700
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-27 05:32 -0700
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-27 05:36 -0700
Re: A proposition for a conditional loop. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-09-27 20:23 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-27 12:45 -0700
Re: A proposition for a conditional loop. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-09-27 22:05 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-27 14:39 -0700
Re: A proposition for a conditional loop. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-09-28 00:16 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-27 17:10 -0700
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-28 17:28 +0200
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-28 11:34 -0700
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-28 22:23 +0200
Re: A proposition for a conditional loop. Tim Streater <timstreater@greenbee.net> - 2019-09-28 21:42 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-29 07:40 -0700
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-29 18:33 +0200
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-29 09:58 -0700
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-29 19:18 +0100
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-29 21:02 +0200
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-29 13:54 -0700
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-28 10:41 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-27 13:17 -0700
Re: A proposition for a conditional loop. Tim Streater <timstreater@greenbee.net> - 2019-09-27 13:41 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-27 06:01 -0700
Re: A proposition for a conditional loop. Tim Streater <timstreater@greenbee.net> - 2019-09-27 14:03 +0100
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-27 19:23 +0100
Re: A proposition for a conditional loop. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-09-27 12:06 -0700
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-28 14:43 +0100
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-25 21:47 +0100
Re: A proposition for a conditional loop. John G Harris <niam@jghnorth.org.uk.invalid> - 2019-09-26 10:49 +0100
Re: A proposition for a conditional loop. "R.Wieser" <address@not.available> - 2019-09-25 17:07 +0200
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