How to uncheck a radio button?

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("");  
  });开发者_开发问答
  $('#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.

---

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.

---

You wouldn't need the each function

$("input:radio").attr("checked", false);

Or

$("input:radio").removeAttr("checked");

The same should also apply to your textbox:

$('#frm input[type="text"]').val("");

But you could improve this

$('#frm input:text').val("");

---

Try

$(this).removeAttr('checked')

Since a lot of browsers will interpret 'checked=anything' as true. This will remove the checked attribute altogether.

Hope this helps.

---

Slight modification of Laurynas' plugin based on Igor's code. This accommodates possible labels associated with the radio buttons being targeted:

(function ($) {
    $.fn.uncheckableRadio = function () {

        return this.each(function () {
            var radio = this;
                $('label[for="' + radio.id + '"]').add(radio).mousedown(function () {
                    $(radio).data('wasChecked', radio.checked);
                });

                $('label[for="' + radio.id + '"]').add(radio).click(function () {
                    if ($(radio).data('wasChecked'))
                        radio.checked = false;
                });
           });
    };
})(jQuery);

---

Rewrite of Igor's code as plugin.

Use:

$('input[type=radio]').uncheckableRadio();

Plugin:

(function( $ ){

    $.fn.uncheckableRadio = function() {

        return this.each(function() {
            $(this).mousedown(function() {
                $(this).data('wasChecked', this.checked);
            });

            $(this).click(function() {
                if ($(this).data('wasChecked'))
                    this.checked = false;
            });
        });

    };

})( jQuery );

---

Thanks Patrick, you made my day! It's mousedown you have to use. However I've improved the code so you can handle a group of radio buttons.

//We need to bind click handler as well
//as FF sets button checked after mousedown, but before click
$('input:radio').bind('click mousedown', (function() {
    //Capture radio button status within its handler scope,
    //so we do not use any global vars and every radio button keeps its own status.
    //This required to uncheck them later.
    //We need to store status separately as browser updates checked status before click handler called,
    //so radio button will always be checked.
    var isChecked;

    return function(event) {
        //console.log(event.type + ": " + this.checked);

        if(event.type == 'click') {
            //console.log(isChecked);

            if(isChecked) {
                //Uncheck and update status
                isChecked = this.checked = false;
            } else {
                //Update status
                //Browser will check the button by itself
                isChecked = true;

                //Do something else if radio button selected
                /*
                if(this.value == 'somevalue') {
                    doSomething();
                } else {
                    doSomethingElse();
                }
                */
            }
    } else {
        //Get the right status before browser sets it
        //We need to use onmousedown event here, as it is the only cross-browser compatible event for radio buttons
        isChecked = this.checked;
    }
}})());

---

For radio and radio group:

$(document).ready(function() {
    $(document).find("input:checked[type='radio']").addClass('bounce');   
    $("input[type='radio']").click(function() {
        $(this).prop('checked', false);
        $(this).toggleClass('bounce');

        if( $(this).hasClass('bounce') ) {
            $(this).prop('checked', true);
            $(document).find("input:not(:checked)[type='radio']").removeClass('bounce');
        }
    });
});

---

Try this, this will do the trick:

        $(document).ready(function() {
           $("input[type='radio']").mousedown(function(e) {
                if ($(this).attr("checked") == true) {
                   setTimeout("$('input[id=" + $(this).attr('id') + "]').removeAttr('checked');", 200);}
                else {
                    return true
                }
            });
        });

---

Try

$(this).attr("checked" , false );

---

You can also simulate the radiobutton behavior using only checkboxes:

<input type="checkbox" class="fakeRadio" checked />
<input type="checkbox" class="fakeRadio" />
<input type="checkbox" class="fakeRadio" />

Then, you can use this simple code to work for you:

$(".fakeRadio").click(function(){
    $(".fakeRadio").prop( "checked", false );
    $(this).prop( "checked", true );
});

It works fine and you have more control over the behavior of each button.

You can try it by yourself at: http://jsfiddle.net/almircampos/n1zvrs0c/

This fork also let's you unselect all as requested in a comment: http://jsfiddle.net/5ry8n4f4/

---

Use this

$("input[name='nameOfYourRadioButton']").attr("checked", false);

---

You can use this JQuery for uncheck radiobutton

$('input:radio[name="IntroducerType"]').removeAttr('checked');
                $('input:radio[name="IntroducerType"]').prop('checked', false);

---

Just put the following code for jQuery :

jQuery("input:radio").removeAttr("checked");

And for javascript :

$("input:radio").removeAttr("checked");

There is no need to put any foreach loop , .each() fubction or any thing

---

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

This is almost good but you missed the [0]

Correct ->> $(this)[0].checked = false;

---

function setRadio(obj) 
{
    if($("input[name='r_"+obj.value+"']").val() == 0 ){
      obj.checked = true
     $("input[name='r_"+obj.value+"']").val(1);
    }else{
      obj.checked = false;
      $("input[name='r_"+obj.value+"']").val(0);
    }

}

<input type="radio" id="planoT" name="planoT[{ID_PLANO}]" value="{ID_PLANO}" onclick="setRadio(this)" > <input type="hidden" id="r_{ID_PLANO}" name="r_{ID_PLANO}" value="0" >

:D

---

$('input[id^="rad"]').dblclick(function(){
    var nombre = $(this).attr('id');
    var checked =  $(this).is(":checked") ;
    if(checked){
        $("input[id="+nombre+"]:radio").prop( "checked", false );
    }
});

Every time you have a double click in a checked radio the checked changes to false

My radios begin with id=radxxxxxxxx because I use this id selector.

---

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

The correct selector is: #frm input[type="radio"]:checked not #frm input[type="radio":checked]