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Leetcode relative line number

Make relative line number available on leetcode

As of 2021-09-26. See the latest version.

  1. // ==UserScript==
  2. // @name         Leetcode relative line number
  3. // @namespace    http://tampermonkey.net/
  4. // @version      0.1.1
  5. // @description  Make relative line number available on leetcode
  6. // @author       You
  7. // @match        https://leetcode.com/problems/*
  8. // @icon         https://www.google.com/s2/favicons?domain=leetcode.com
  9. // @grant        none
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.     'use strict';
  14.  
  15.     // Your code here...
  16.     function setRelativeLineNumber() {
  17.         let activeLineHTML = document.querySelector("div.CodeMirror-activeline > div > div").innerHTML;
  18.         let activeLineNumber = 0;
  19.         if (activeLineHTML != null && activeLineHTML !== undefined) {
  20.             let lineNumber = activeLineHTML.match("[0-9]+");
  21.             if (lineNumber == null) { return; }
  22.             activeLineNumber = parseInt(lineNumber[0]);
  23.         }
  24.         let allLines = document.querySelectorAll("div.CodeMirror-linenumber");
  25.         allLines.forEach(line => {
  26.             if (!line.hasAttribute("natural-line")) {
  27.                 line.setAttribute("natural-line", parseInt(line.innerHTML));
  28.             }
  29.             line.innerHTML = Math.abs(line.getAttribute("natural-line") - activeLineNumber).toString();
  30.             if (line.innerHTML == "0") {
  31.                 line.innerHTML = " ";
  32.             }
  33.         });
  34.     };
  35.     setInterval(setRelativeLineNumber, 300);
  36.     document.addEventListener('click', setRelativeLineNumber);
  37.  
  38. })();