How to get the directory part of current URL in JavaScript?

Question

I\'m trying to add a \"back to dir\" button at the top of a web page, which would redirect the user to the same URL, but with no filename in it.

For example, clickin

Answer 1

/* to avoid query parameters, use pathname instead of href */
var l = document.location.pathname.split('/');
l.pop();
console.log(document.location.origin + l.join('/'));