jquery javascript: take action when radio button is selected

Question

I have the following radio buttons, none of which is checked by default.

<input type="radio" name="location" value="0" /> home
<input type="radio" name="location" value="1" /> work
<input type="radio" name="location" value="2" /> school

How do I detect when either of them is checked. I'm looking for something like click, but it's not working

$("input[name=location]").click(function(){
    alert("selected");
}); 

Answer 1

$('input[name=location]').change(function(){
    alert(this.checked);
});

Answer 2

Try surrounding the code with below lines

$(document).ready(function(){

}
);