Attach event listener through javascript to radio button

Question

I have several radio buttons with the same name. Like this:

Answer 1

You could add just a single listener that listens to all radio buttons, rather than individual listeners.

using jquery, you could do it like this

$(document).ready(function(){
    $('input[type=radio]').click(function(){
        alert(this.value);
    });
});

Demo

For only the radios within a form with id formA

 $(document).ready(function(){
        $('#formA input[type=radio]').click(function(){
            alert(this.value);
        });
    });

For only radios with an id myradio

$(document).ready(function(){
    $('input[type=radio]').click(function(){
        if (this.id == "myradio")
            alert(this.value);
    });
});

Demo