advanced code snippet search

We Recommend

Pro JavaScript Techniques Pro JavaScript Techniques
Pro JavaScript Techniques is the ultimate JavaScript book for the modern web developer. It provides everything you need to know about modern JavaScript, and shows what JavaScript can do for your web sites. This book doesn't waste any time looking at things you already know, like basic syntax and structures.

Posted By

noah on 07/10/07


Tagged

javascript menu select sort library forms dhtml options utilities clj


Versions (?)


Sort the OPTIONs in a SELECT menu

Published in: JavaScript 

URL: http://groups.google.com/group/comp.lang.javascript/browse_thread/thread/c6ae2e7084b96c1/ef1bf5e1640c139a?lnk=gst&q=sort+options&rnum=4#ef1bf5e1640c139a

Author: Clyde Ingram

Plain TextExpand 
  1. function compareOptionText(a,b) {
  2.   /*
  3.    * return >0 if a>b
  4.    *         0 if a=b
  5.    *        <0 if a<b
  6.    */
  7.   // textual comparison
  8.   return a.text!=b.text ? a.text<b.text ? -1 : 1 : 0;
  9.   // numerical comparison
  10. //  return a.text - b.text;
  11.  
  12. }
  13.  
  14. function sortOptions(list) {
  15.   var items = list.options.length;
  16.   // create array and make copies of options in list
  17.   var tmpArray = new Array(items);
  18.   for ( i=0; i<items; i++ )
  19.     tmpArray[i] = new
  20. Option(list.options[i].text,list.options[i].value);
  21.   // sort options using given function
  22.   tmpArray.sort(compareOptionText);
  23.   // make copies of sorted options back to list
  24.   for ( i=0; i<items; i++ )
  25.     list.options[i] = new Option(tmpArray[i].text,tmpArray[i].value);
  26.  
  27. }

Report this snippet 

You need to login to post a comment.