JavaScript - Loading JavaScript source code synchronously

function loadJS (file) {
    var js = $.ajax({
          type: 'GET'
        , url: file
        , async: false
    }).responseText; // No need to append
}

console.log('Test is loading...');
loadJS('test.js');
console.log('Test was loaded:', window.loadedModule); // loadedModule come from test.js