JavaScript - How do I make sure a jQuery is loaded?

Question

I have a web page. When this web page is loaded, I want to execute some JavaScript. This JavaScript uses JQuery. However, it appears that when the page is loaded, the jQuery

Answer 1

When a browser encounters a script element it blocks which means that as long as you have a script element that loads jQuery before any script that wants to use jQuery, you should be fine, e.g.

See JavaScript Load Order for some additional commentary on this topic.