How can I force JavaScript to wait until after a dynamically added script file has completed loading?

Question

I'm trying to write a function which will append a javascript file to the DOM, but I am looking to have the rest of the code wait until the newly added JS file is completely loaded. Here is an example of what I am trying to accomplish, although this code doesn't work properly:

$(document).ready(function () {
    var newScript = document.createElement("script");
    newScript.setAttribute("type", "text/javascript");
    newScript.src = "http://www.domain.com/script.js";
    document.getElementsByTagName("body")[0].appendChild(newScript);
    $(newScript).ready(function () { // This is the idea of what I'm trying to do, but this doesn't seem to actually wait until the new file is completely loaded.
        foo.bar(); // foo is a new global variable which is declared in the newScript. This causes an error "foo is not defined".
        // Here is where more code I wish to execute should continue.
    });
});

Answer 1

As Musa mentioned in the comments above. Use jQuery's getScript and use the success callback function to trigger your other functions.