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