JSFiddle - React, Tailwind, and code Playground

by RichardTowers

JavaScript

var url = "https://pay.reddit.com/r/linux/.compact";
var redditPattern = /^https:\/\/pay.reddit.com\/.*/;
var compactPattern = /\.compact/;
if (redditPattern.test(url) && !compactPattern.test(url)) {
    alert(url + '.compact');
}