How can I know which radio button is selected via

Question

I have two radio buttons and want to post the value of the selected one. How can I get the value with jQuery?

I can get all of them like this:

$("form :radio")

How do I know which one is selected?

Answer 1

In a JSF generated radio button (using <h:selectOneRadio> tag), you can do this:

radiobuttonvalue = jQuery("input[name='form_id\:radiobutton_id']:checked").val();

where selectOneRadio ID is radiobutton_id and form ID is form_id.

Be sure to use name instead id, as indicated, because jQuery uses this attribute (name is generated automatically by JSF resembling control ID).

Answer 2

$(function () {
// Someone has clicked one of the radio buttons
var myform= 'form.myform';
$(myform).click(function () {
    var radValue= "";
    $(this).find('input[type=radio]:checked').each(function () {
        radValue= $(this).val();
    });
  })
});

Answer 3

Use this:

value = $('input[name=button-name]:checked').val();

Answer 4

You need access with the :checked selector:

Check this doc:

• https://api.jquery.com/checked-selector/

a example:

$('input[name=radioName]:checked', '#myForm').val()
$('#myForm input').on('change', function() {
	$('#val').text($('input[name=radioName]:checked', '#myForm').val());
});

#val {
  color: #EB0054;
  font-size: 1.5em;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<h3>Radio value: <span id='val'><span></h3>
<form id="myForm">
  <input type="radio" name="radioName" value="a"> a <br>
  <input type="radio" name="radioName" value="b"> b <br>
  <input type="radio" name="radioName" value="c"> c <br>
</form>

Answer 5

 $(".Stat").click(function () {
     var rdbVal1 = $("input[name$=S]:checked").val();
 }

Answer 6

If you already have a reference to a radio button group, for example:

var myRadio = $("input[name=myRadio]");

Use the filter() function, not find(). (find() is for locating child/descendant elements, whereas filter() searches top-level elements in your selection.)

var checkedValue = myRadio.filter(":checked").val();

---

Notes: This answer was originally correcting another answer that recommended using find(), which seems to have since been changed. find() could still be useful for the situation where you already had a reference to a container element, but not to the radio buttons, e.g.:

var form = $("#mainForm");
...
var checkedValue = form.find("input[name=myRadio]:checked").val();