Question

For example, I have an script like this: <script src="myjs.js?lol=asd"></script>.

Is there anyway to get the lol inside the js file to alert it, for example, like we can do in PHP? Like:

var lol = $_GET['lol'];
alert(lol);

Answer 1

Use the code from How may I reference the script tag that loaded the currently-executing script? to get a reference to the script tag:

var scripts = document.getElementsByTagName('script');
var thisScriptTag = scripts[scripts.length - 1];

Then you can use thisScriptTag.src to access its src attribute and parse it to get the variable you are looking for