JSFiddle - React, Tailwind, and code Playground

JavaScript

var url1 = "http://yourdomain.com/faq";
var url2 = "http://yourdomain.com/test/";

alert(getLastPart(url1));
alert(getLastPart(url2));

function getLastPart(url) {
    var parts = url.split("/");
    return (url.lastIndexOf('/') !== url.length - 1 ? parts[parts.length - 1] : parts[parts.length - 2]);
}