javascript - How to uncheck a radio button?

Question

I have group of radio buttons that I want to uncheck after an AJAX form is submitted using jQuery. I have the following function:

function clearForm(){
  $('#frm input[type="text"]').each(function(){
      $(this).val("");  
  });
  $('#frm input[type="radio":checked]').each(function(){
      $(this).checked = false;  
  });
 }

With the help of this function, I can clear the values at the text boxes, but I can't clear the values of the radio buttons.

By the way, I also tried $(this).val(""); but that didn't work.

Answer 1

either (plain js)

this.checked = false;

or (jQuery)

$(this).prop('checked', false);
// Note that the pre-jQuery 1.6 idiom was
// $(this).attr('checked', false);

See jQuery prop() help page for an explanation on the difference between attr() and prop() and why prop() is now preferable.
prop() was introduced with jQuery 1.6 in May 2011.