Update jQuery on-the-fly in Javascript

update-jquery-on-the-fly.js

console.log($().jquery); // Show original jQuery-version

// Closure
var $gs = $.getScript;

// http://api.jquery.com/jQuery.noConflict/
// jQuery.noConflict( [removeAll] )
// removeAll: A Boolean indicating whether to remove all jQuery variables from the global scope (including jQuery itself).
$.noConflict(true);

// Get script
$gs('http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js', function() {
    console.log($().jquery); // Show updated jQuery-version
});