How might I get the script filename from within that script?

Question

I'm pretty sure the answer is no, but thought I'd ask anyway.

If my site references a scripted named "whatever.js", is it possible to get "whatever.js" from within that script? Like:

var scriptName = ???  if (typeof jQuery !== "function") {     throw new Error(         "jQuery's script needs to be loaded before " +          scriptName + ". Check the <script> tag order."); } 

Probably more trouble than it's worth for dependency checking, but what the hell.

Answer 1

var scripts = document.getElementsByTagName('script'); var lastScript = scripts[scripts.length-1]; var scriptName = lastScript.src; alert("loading: " + scriptName); 

Tested in: FF 3.0.8, Chrome 1.0.154.53, IE6

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See also: How may I reference the script tag that loaded the currently-executing script?