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jQuery Determine if at least one radio button is checked in a radio group

/ Published in: jQuery
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Copy this code and paste it in your HTML 
  1. var radio_groups = {}
  2. $(":radio").each(function(){
  3.     radio_groups[this.name] = true;
  4. })
  5.  
  6.  
  7. for(group in radio_groups){                    
  8.     if ($(:radio[name="+group+"]:checked).length ==0) {
  9.     //not checked
  10.     } else {
  11.     //checked
  12.     }
  13.  
  14. }

URL: http://stackoverflow.com/questions/1165627/jquery-and-radio-button-groups

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