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Posted By

noah on 07/20/07


Tagged

regex css DOM whitespace className utilities selector mattkruse hasclass icanhasclass


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heinz1959
tcmacdonald


Kruse's hasClass

 / Published in: JavaScript
 

URL: http://groups.google.com/group/comp.lang.javascript/browse_thread/thread/b68cac304ee6de78/e445c1df18698a3f?lnk=gst&q=hasclass&rnum=3

This Matt Kruse's hasClass function.

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  1. /*	
  2.  ** Matt Kruse's hasClass, with slight modification	
  3.  ** Determine if an object or class string contains a given class.
  4.   */
  5. function hasClass (obj, className) {
  6.     if (typeof obj == 'undefined' || obj==null || !RegExp) { return false; }
  7.     var re = new RegExp("(^|\\s)" + className + "(\\s|$)");
  8.     if (typeof(obj)=="string") {
  9.       return re.test(obj);
  10.     }
  11.     else if (typeof(obj)=="object" && obj.className) {
  12.       return re.test(obj.className);
  13.     }
  14.     return false;
  15.   }

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