CODEWITHSUNDEEP
jquery
Elitmiar
Elitmiar

Reputation: 36839

Using JQuery to check if no radio button in a group has been checked

I'm sitting with a problem, I need to check with JQuery if no radio button within a radio button group has been checked, so that I can give the users an javascript error if they forgot to check a option.

I'm using the following code to get the values

var radio_button_val = $("input[name='html_elements']:checked").val();

Upvotes: 117

Views: 143077

Answers (8)

Mathew Magante
Mathew Magante

Reputation: 1407

I am using this much simple

HTML

<label class="radio"><input id="job1" type="radio" name="job" value="1" checked>New Job</label>
<label class="radio"><input id="job2" type="radio" name="job" value="2">Updating Job</label>


<button type="button" class="btn btn-primary" onclick="save();">Save</button>

SCRIPT

 $('#save').on('click', function(e) {
    if (job1.checked)
        {
              alert("New Job"); 
        }
if (job2.checked)
        {
            alert("Updating Job");
        }

}

Upvotes: 0

Vitali D.
Vitali D.

Reputation: 143

I think this is a simple example, how to check if a radio in a group of radios was checked.

if($('input[name=html_elements]:checked').length){
    //a radio button was checked
}else{
    //there was no radio button checked
}

Upvotes: 2

David Okwii
David Okwii

Reputation: 7830

var len = $('#your_form_id input:radio:checked').length;
      if (!len) {
        alert("None checked");
      };
      alert("checked: "+ len);

Upvotes: 2

N Zhang
N Zhang

Reputation: 101

Use .length refer to http://api.jquery.com/checked-selector/

if ($('input[name="html_elements"]:checked').length === 0) alert("Not checked");
else alert("Checked");

Upvotes: 5

fanjabi
fanjabi

Reputation: 1675

if ($("input[name='html_elements']:checked").size()==0) {
   alert('Nothing is checked!');
}
else {
  alert('One of the radio buttons is checked!');
}

Upvotes: 6

Jacobo Hernandez
Jacobo Hernandez

Reputation: 1653

I'm using

$("input:radio[name='html_radio']").is(":checked")

And will return FALSE if all the items in the radiogroup are unchecked and TRUE if an item is checked.

Upvotes: 154

Doug Neiner
Doug Neiner

Reputation: 66191

You could do something like this:

var radio_buttons = $("input[name='html_elements']");
if( radio_buttons.filter(':checked').length == 0){
  // None checked
} else {
  // If you need to use the result you can do so without
  // another (costly) jQuery selector call:
  var val = radio_buttons.val();
}

Upvotes: 32

Dominic Rodger
Dominic Rodger

Reputation: 99751

if (!$("input[name='html_elements']:checked").val()) {
   alert('Nothing is checked!');
}
else {
  alert('One of the radio buttons is checked!');
}

Upvotes: 162

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