Flash Website Builder- Trendy Site Builder is a Flash Site Building tool that helps users build stunning websites. Check Out Custom Custom Logo Design by LogoBee. Website Design and Free Logo Templates available.
 CodingForums.com Sorting Ip address within array

Before you post, read our: Rules & Posting Guidelines

Enjoy an ad free experience by logging in. Not a member yet? Register.
 01-25-2012, 07:41 PM PM User | #1 sephlaire New Coder   Join Date: Jan 2012 Posts: 12 Thanks: 6 Thanked 0 Times in 0 Posts Sorting Ip address within array I am trying to make an addition to a .js plugin for a wiki. Currently it does not support sorting my IP address. So far I have created the below code which does more than the script initially did, but is still not sorting 100% correctly. Any tips? Code: ```sort_ipaddr: function(a,b){ aa = a[0].split(".",4); bb = b[0].split(".",4); var counti = 0; for (var i=0; i<4; i++) { if (parseInt(parseFloat(aa[i])) == parseInt(parseFloat(bb[i]))){} if (parseInt(parseFloat(aa[i])) < parseInt(parseFloat(bb[i]))){counti--} if (parseInt(parseFloat(aa[i])) > parseInt(parseFloat(bb[i]))){counti++} } return counti; },``` EDIT I've also tried this which is closer but still not there. Code: ```sort_ipaddr: function(a,b){ aa = a[0].split(".",4); bb = b[0].split(".",4); var resulta = (aa[3]+(aa[2]*256)+(aa[1]*256*256)+(aa[0]*256*256*256)); var resultb = (bb[3]+(bb[2]*256)+(bb[1]*256*256)+(bb[0]*256*256*256)); return resulta-resultb; },``` This results in a list like so: 10.1.15.22 10.1.16.22 10.1.15.23 10.1.15.24 10.1.16.24 10.1.15.25 Last edited by sephlaire; 01-25-2012 at 08:27 PM..
 01-25-2012, 09:19 PM PM User | #2 Old Pedant Supreme Master coder!     Join Date: Feb 2009 Posts: 24,949 Thanks: 75 Thanked 4,307 Times in 4,274 Posts Your second one is close, but the very first addition in each resultX calculation will be a string concatenation instead of arithmetic add. So that means that you end up comparing something like "24xxxxx" vs. "25xxxxx" and get the results you are seeing. Keep it simple: Code: ```sort_ipaddr: function(a,b){ aa = a[0].split("."); bb = b[0].split("."); var resulta = aa[0]*0x1000000 + aa[1]*0x10000 + aa[2]*0x100 + aa[3]*1; var resultb = ab[0]*0x1000000 + ab[1]*0x10000 + ab[2]*0x100 + ab[3]*1; return resulta-resultb; },``` __________________ An optimist sees the glass as half full. A pessimist sees the glass as half empty. A realist drinks it no matter how much there is.
 Users who have thanked Old Pedant for this post: sephlaire (01-25-2012)
 01-25-2012, 09:32 PM PM User | #3 sephlaire New Coder   Join Date: Jan 2012 Posts: 12 Thanks: 6 Thanked 0 Times in 0 Posts --EDIT Removed-- I spoke too soon! Works perfectly thank you. My mistake was that in the split I used variables aa and bb. In the resultsx line aa and ab were used as variables. Last edited by sephlaire; 01-25-2012 at 09:35 PM..
 01-25-2012, 09:57 PM PM User | #4 Old Pedant Supreme Master coder!     Join Date: Feb 2009 Posts: 24,949 Thanks: 75 Thanked 4,307 Times in 4,274 Posts Oops...I missed that, too. But glad it works now. If you didn't know, multiplying by anything (including 1) is one way to force the conversion of the string you get from split to become a number. __________________ An optimist sees the glass as half full. A pessimist sees the glass as half empty. A realist drinks it no matter how much there is. Last edited by Old Pedant; 01-25-2012 at 10:01 PM..
 Users who have thanked Old Pedant for this post: sephlaire (01-25-2012)
01-26-2012, 10:07 AM   PM User | #5
Philip M
Supreme Master coder!

Join Date: Jun 2002
Location: London, England
Posts: 17,475
Thanks: 200
Thanked 2,470 Times in 2,448 Posts
Quote:
 Originally Posted by Old Pedant If you didn't know, multiplying by anything (including 1) is one way to force the conversion of the string you get from split to become a number.
I thought you considered that to be a hack!
__________________

All the code given in this post has been tested and is intended to address the question asked.
Unless stated otherwise it is not just a demonstration.

 01-26-2012, 09:37 PM PM User | #6 Old Pedant Supreme Master coder!     Join Date: Feb 2009 Posts: 24,949 Thanks: 75 Thanked 4,307 Times in 4,274 Posts LOL! Depends on usage. Here, the whole point was to multiply each part of the IP address by the apprpriate number. I certainly wouldn't do `parseInt(ip[0[) * 0x1000000` so why not use the same pattern throughout? Beside, if it really is an IP address we *know* it will be a number. No detection of invalid values needed, one hopes. __________________ An optimist sees the glass as half full. A pessimist sees the glass as half empty. A realist drinks it no matter how much there is.

 Bookmarks

 Thread Tools Rate This Thread Rate This Thread: 5 : Excellent 4 : Good 3 : Average 2 : Bad 1 : Terrible

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home :: Client side development     JavaScript programming         DOM and JSON scripting         Ajax and Design         JavaScript frameworks         Post a JavaScript     HTML & CSS     XML     Flash & ActionScript         Adobe Flex     Graphics and Multimedia discussions     General web building         Site reviews         Building for mobile devices :: Server side development     Apache configuration     Perl/ CGI     PHP         Post a PHP snippet     MySQL         Other Databases     Ruby & Ruby On Rails     ASP     ASP.NET     Java and JSP     Other server side languages/ issues         ColdFusion         Python :: Computing & Sciences     Computer Programming     Computer/PC discussions     Geek News and Humour Web Projects and Services Marketplace     Web Projects         Small projects (quick fixes and changes)         Medium projects (new script, new features, etc)         Large Projects (new web application, complex features etc)         Unknown sized projects (request quote)         Vacant job positions         Looking for work/ for hire         Project collaboration/ partnership         Paid work offers and requests (Now CLOSED)     Career, job, and business ideas or advice     Domains, Sites, and Designs for sale         Domains for sale         Websites for sale         Design templates and graphics for sale :: Other forums     Member Offers     Forum feedback and announcements

All times are GMT +1. The time now is 01:02 AM.