jquery - getScript - How to only call if not already called

Question

on a Click, the following gets loaded:

$.getScript('/javascripts/contacts.js');

How can I write a statement that says

if the getScript above is already loaded do X,, if not loaded it, do Y...?

Thanks

Answer 1

var gotContacts = 0;
function getContacts(){
    if (!gotContacts){
        $.getScript('/javascripts/contacts.js', function() {
            gotContacts = 1;
            doSomethingWithContacts();
        });
    }else{
        doSomethingWithContacts();
    }
}