Add an "Open at LeetCode.cn" button on the LeetCode Contest page.
// ==UserScript==
// @name LeetCode Contest: Open at leetcode.cn
// @namespace JohnZhu04
// @match https://leetcode.com/contest/*/problems/*
// @grant none
// @version 1.0
// @author JohnZhu04
// @license MIT
// @supportURL https://github.com/JohnZhu04/LeetScript/issues
// @icon https://www.google.com/s2/favicons?sz=64&domain=leetcode.com
// @description Add an "Open at LeetCode.cn" button on the LeetCode Contest page.
// ==/UserScript==
const openCNURL = () => {
const url = window.location.href.replace("leetcode.com", "leetcode.cn");
window.open(url);
};
const main = () => {
const whichDiv = ".question-title";
const buttonClass = "btn btn-default panel-hover";
const buttonText = "Open at LeetCode.cn";
if (!document.querySelector(whichDiv)) {
window.setTimeout(main, 2000);
}
const button = document.createElement("button");
button.innerText = buttonText;
button.addEventListener("click", openCNURL);
button.className = buttonClass;
document.querySelector(whichDiv).appendChild(button);
};
main();