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Groups > comp.lang.javascript > #34291
| Newsgroups | comp.lang.javascript |
|---|---|
| Date | 2017-11-04 14:27 -0700 |
| References | (1 earlier) <6e1799aa-73cd-4ceb-b6bb-c8e0dd04b378@googlegroups.com> <586dd7cc-dbe7-425b-aadb-8177f244bc93@googlegroups.com> <f34550a2-30d4-4d84-a758-f81ad4dddc01@googlegroups.com> <3e760751-4e27-4aec-9bfe-57139be7f7f9@googlegroups.com> <53264473-7e2f-41b7-bf95-57fcd0f271f2@googlegroups.com> |
| Message-ID | <ec52da20-ef5a-4bc5-bd43-b20bd98e400b@googlegroups.com> (permalink) |
| Subject | Re: Improve my sort! |
| From | jonas.thornvall@gmail.com |
Den lördag 4 november 2017 kl. 22:16:08 UTC+1 skrev Michael Haufe (TNO):
> jonas.t...@gmail.com wrote:
>
> > Sure you can't have problem understand the algorithm
>
> I "have problem understand" the presentation. I don't even want to look at the algorithm in it's current form if it can't pass a basic linter and is presented in a quirks mode html page without formatting.
>
> > function jtindexsort(){
> > var starttime = new Date().getTime();
> > countval= new Array();
> > //Initiate array range
> > for (j=start;j<end;j++){
> > countval[j]=0;
> > }
> > var temp;
> >
> > //Put them on correct index
> > for (var i=0;i<numberofvalues;i++){
> > temp=dval[i];
> > countval[temp]=countval[temp]+1;
> > }
> > p=0;
> >
> >
> >
> > offset=0;
> > for (var i=start;i<end;i++){
> > dval.fill(i,offset,offset+countval[i]);
> > offset=offset+countval[i];
> > }
> >
> > var endtime = new Date().getTime();
> > var timed = endtime - starttime;
> > document.sort.functime.value=timed;
> > }
> >
> > If you think that ones to hard to analyse for your febble mind try the one below, it easy enough to teach a ten year old. Or to be created by a ten year old.
>
> Gladly for my years of formal education in the relevant field I don't have to use my "febble" mind to criticize:
>
> <http://www.typescriptlang.org/play/index.html#src=function jtindexsort() {%0D%0A var starttime %3D new Date().getTime()%3B%0D%0A countval %3D new Array()%3B%0D%0A %2F%2FInitiate array range%0D%0A for (j %3D start%3B j < end%3B j%2B%2B) {%0D%0A countval[j] %3D 0%3B%0D%0A }%0D%0A var temp%3B%0D%0A %2F%2FPut them on correct index%0D%0A for (var i %3D 0%3B i < numberofvalues%3B i%2B%2B) {%0D%0A temp %3D dval[i]%3B%0D%0A countval[temp] %3D countval[temp] %2B 1%3B%0D%0A }%0D%0A p %3D 0%3B%0D%0A offset %3D 0%3B%0D%0A for (var i %3D start%3B i < end%3B i%2B%2B) {%0D%0A dval.fill(i%2C offset%2C offset %2B countval[i])%3B%0D%0A offset %3D offset %2B countval[i]%3B%0D%0A }%0D%0A var endtime %3D new Date().getTime()%3B%0D%0A var timed %3D endtime - starttime%3B%0D%0A document.sort.functime.value %3D timed%3B%0D%0A}>
>
> > So tell me what is it you object to?
>
> Without even looking at the algorithm proper:
>
> 1- Free variables
> 2- mixing of DOM and the sorting algorithm
> 3- Not using the appropriate measurement API for this (performance.now)
> 4- combining performance measurement with the algorithm
> 5- redefining i
> 6- not using array literal notation
>
> > function jtindexsort(){
> > //Initiate array range
> > q=0;
> > countval.fill(q,start,end);
> > var temp;
> > //Put them on correct index
> > for (var i=0;i<numberofvalues;i++){
> > temp=dval[i];
> > countval[temp]=countval[temp]+1;
> > }
> > offset=0;
> > for (var i=start;i<end;i++){
> > dval.fill(i,offset,offset+countval[i]);
> > offset=offset+countval[i];
> > }
> > }
>
> Again, no thought required on my part here:
>
> <http://www.typescriptlang.org/play/index.html#src=function jtindexsort() {%0D%0A %2F%2FInitiate array range%0D%0A q %3D 0%3B%0D%0A countval.fill(q%2C start%2C end)%3B%0D%0A var temp%3B%0D%0A %2F%2FPut them on correct index%0D%0A for (var i %3D 0%3B i < numberofvalues%3B i%2B%2B) {%0D%0A temp %3D dval[i]%3B%0D%0A countval[temp] %3D countval[temp] %2B 1%3B%0D%0A }%0D%0A offset %3D 0%3B%0D%0A for (var i %3D start%3B i < end%3B i%2B%2B) {%0D%0A dval.fill(i%2C offset%2C offset %2B countval[i])%3B%0D%0A offset %3D offset %2B countval[i]%3B%0D%0A }%0D%0A}>
Please somone?
Can't you see the poor thing needs help, please someone give him some buckets, don't be cruel.
Back to comp.lang.javascript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 05:50 -0700
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-04 11:54 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 11:57 -0700
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-04 12:40 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 13:20 -0700
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-04 13:59 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 14:02 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 14:05 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 14:06 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 13:26 -0700
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-04 14:16 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 14:23 -0700
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-04 14:40 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 14:48 -0700
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-04 14:53 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 15:08 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 14:51 -0700
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-04 15:11 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 14:27 -0700
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 14:29 -0700
Re: Improve my sort! Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-11-05 20:21 +0100
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-05 16:14 -0800
Re: Improve my sort! Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-11-06 00:23 +0000
Re: Improve my sort! Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-11-06 02:53 +0100
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 12:02 -0700
Re: Improve my sort! Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-11-04 20:22 +0000
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 13:48 -0700
Re: Improve my sort! Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-11-04 22:08 +0000
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 15:14 -0700
Re: Improve my sort! Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-11-04 23:12 +0000
Re: Improve my sort! jonas.thornvall@gmail.com - 2017-11-04 17:14 -0700
Re: Improve my sort! "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2017-11-04 15:16 -0700
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