Dynamically load a JavaScript file

Question

How can you reliably and dynamically load a JavaScript file? This will can be used to implement a module or component that when \'initialized\' the component will dynamical

Answer 1

If you have jQuery loaded already, you should use $.getScript.

This has an advantage over the other answers here in that you have a built in callback function (to guarantee the script is loaded before the dependant code runs) and you can control caching.