jQuery get value of selected radio button

Question

The problem statement is simple. I need to see if user has selected a radio button from a radio group. Every radio button in the group share same id.

The problem is that I don't have control on how the form is generated. Here is the sample code of how a radio button control code looks like:

<input type="radio" name='s_2_1_6_0' value='Mail copy to my bill to address' id = "InvCopyRadio" onchange = 'SWESubmitForm(document.SWEForm2_0,s_4,"","1-DPWJJF")' style="height:20;width:25" tabindex=1997 >

In addition to this when a radio button is selected it doesn't add a "checked" attribute to the control just text checked (I guess just the property checked without a value). Below is how a selected radio control looks like

<input type="radio" checked name='s_2_1_6_0' value='Mail copy to my bill to address' id = "InvCopyRadio" onchange = 'SWESubmitForm(document.SWEForm2_0,s_4,"","1-DPWJJF")' style="height:20;width:25" tabindex=1997 >

Can anybody help me with jQuery code that can help me to get the value of checked radio button?

Answer 1

    <input type="radio" name='s_2_1_6_0' value='Mail copy to my bill to address' id = "InvCopyRadio" onchange = 'SWESubmitForm(document.SWEForm2_0,s_4,"","1-DPWJJF")' style="height:20;width:25" tabindex=1997 >

$(function() {
      $("#submit").click(function() {
        alert($('input[name=s_2_1_6_0]:checked').val());
      });
    });`

Answer 2

<input type="radio" class="radioBtnClass" name="numbers" value="1" />1<br/>
<input type="radio" class="radioBtnClass" name="numbers" value="2" />2<br/>
<input type="radio" class="radioBtnClass" name="numbers" value="3" />3<br/>

This will return, checked radio button value.

if($("input[type='radio'].radioBtnClass").is(':checked')) {
    var card_type = $("input[type='radio'].radioBtnClass:checked").val();
    alert(card_type);
}

Answer 3

See below for working example with a collection of radio groups each associated with different sections. Your naming scheme is important, but ideally you should try and use a consistent naming scheme for inputs anyway (especially when they're in sections like here).

$('#submit').click(function(){
  var section = $('input:radio[name="sec_num"]:checked').val();
  var question = $('input:radio[name="qst_num"]:checked').val();
  
  var selectedVal = checkVal(section, question);
  $('#show_val_div').text(selectedVal);
  $('#show_val_div').show();
});

function checkVal(section, question) {
  var value = $('input:radio[name="sec'+section+'_r'+question+'"]:checked').val() || "Selection Not Made";
  return value;
}

* { margin: 0; }
div { margin-bottom: 20px; padding: 10px; }
h5, label { display: inline-block; }
.small { font-size: 12px; }
.hide { display: none; }
#formDiv { padding: 10px; border: 1px solid black; }
.center { display:block; margin: 0 auto; text-align:center; }

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

<div class="center">
  <div>
    <h4>Section 1</h4>

    <h5>First question text</h5>
    <label class="small"><input type="radio" name="sec1_r1" value="(1:1) YES"> YES</label>
    <label class="small"><input type="radio" name="sec1_r1" value="(1:1) NO"> NO</label>
    <br/>
    <h5>Second question text</h5>
    <label class="small"><input type="radio" name="sec1_r2" value="(1:2) YES"> YES</label>
    <label class="small"><input type="radio" name="sec1_r2" value="(1:2) NO"> NO</label>
    <br/>
    <h5>Third Question</h5>
    <label class="small"><input type="radio" name="sec1_r3" value="(1:3) YES"> YES</label>
    <label class="small"><input type="radio" name="sec1_r3" value="(1:3) NO"> NO</label>
  </div>

  <div>
    <h4>Section 2</h4>
    <h5>First question text</h5>
    <label class="small"><input type="radio" name="sec2_r1" value="(2:1) YES"> YES</label>
    <label class="small"><input type="radio" name="sec2_r1" value="(2:1) NO"> NO</label>
    <br/>
    <h5>Second question text</h5>
    <label class="small"><input type="radio" name="sec2_r2" value="(2:2) YES"> YES</label>
    <label class="small"><input type="radio" name="sec2_r2" value="(2:2) NO"> NO</label>
    <br/>
    <h5>Third Question</h5>
    <label class="small"><input type="radio" name="sec2_r3" value="(2:3) YES"> YES</label>
    <label class="small"><input type="radio" name="sec2_r3" value="(2:3) NO"> NO</label>
  </div>

  <div>
    <h4>Section 3</h4>
    <h5>First question text</h5>
    <label class="small"><input type="radio" name="sec3_r1" value="(3:1) YES"> YES</label>
    <label class="small"><input type="radio" name="sec3_r1" value="(3:1) NO"> NO</label>
    <br/>
    <h5>Second question text</h5>
    <label class="small"><input type="radio" name="sec3_r2" value="(3:2) YES"> YES</label>
    <label class="small"><input type="radio" name="sec3_r2" value="(3:2) NO"> NO</label>
    <br/>
    <h5>Third Question</h5>
    <label class="small"><input type="radio" name="sec3_r3" value="(3:3) YES"> YES</label>
    <label class="small"><input type="radio" name="sec3_r3" value="(3:3) NO"> NO</label>
  </div>
</div>


<div id="formDiv" class="center">
  <form target="#show_val_div" method="post">
    <p>Choose Section Number</p>
    <label class="small">
      <input type="radio" name="sec_num" value="1"> 1</label>
    <label class="small">
      <input type="radio" name="sec_num" value="2"> 2</label>
    <label class="small">
      <input type="radio" name="sec_num" value="3"> 3</label>
    <br/><br/>
    
    <p>Choose Question Number</p>
    <label class="small">
      <input type="radio" name="qst_num" value="1"> 1</label>
    <label class="small">
      <input type="radio" name="qst_num" value="2"> 2</label>
    <label class="small">
      <input type="radio" name="qst_num" value="3"> 3</label>
    <br/><br/>
    
    <input id="submit" type="submit" value="Show Value">
    
  </form>
  <br/>
  <p id="show_val_div"></p>
</div>
<br/><br/><br/>

Answer 4

Simplest way to get the selected radio button's value is as follows:

$("input[name='optradio']:checked").val();

No space should be used in between selector.

Answer 5

Use Below Code

$('input[name=your_radio_button_name]:checked').val();

Please note, value attribute should be defined so could get "Male" or "Female" in your result.

<div id='div_container'>
<input type="radio" name="Gender" value="Male" /> Male <br />
<input type="radio" name="Gender" value="Female" /> Female
</div>

Answer 6

Try this with example

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1  /jquery.min.js"></script>
<form id="myForm">
<input type="radio" name="radio" value="first"/> 1 <br/>
<input type="radio" name="radio" value="second"/> 2 <br/>
</form>



<script>
$(document).ready(function () {
    $('#myForm').on('click', function () {
        var value = $("[name=radio]:checked").val();

        alert(value);
    })
});
</script>