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jQuery and common function shortcuts everywhere

injects jquery if not exists and adds some common function shortcuts to the window object. See al.help() for details.

  1. // ==UserScript==
  2. // @name         jQuery and common function shortcuts everywhere
  3. // @namespace    https://github.com/Alistair1231/my-userscripts/
  4. // @version      0.5.1
  5. // @description  injects jquery if not exists and adds some common function shortcuts to the window object. See al.help() for details.
  6. // @author       Alistair1231
  7. // @match        *://*/*
  8. // @grant        GM_xmlhttpRequest
  9. // @license      MIT
  10. // ==/UserScript==
  11. // https://greasyfork.org/en/scripts/439017-jquery-and-common-function-shortcuts-everywhere
  12. (function () {
  13.   'use strict';
  14.   const helpString = `
  15. '\
  16. al: jQuery and Method shortcuts everywhere\\n\
  17. ------------------------------------------\\n\
  18. al.cl(str) - console.log(str)\\n\
  19. al.js(obj) - JSON.stringify(obj)\\n\
  20. al.jsp(obj) - JSON.stringify(obj, null, 2)\\n\
  21. al.jp(str) - JSON.parse(str)\\n\
  22. al.qs(selector) - document.querySelector(selector)\\n\
  23. al.qsa(selector) - document.querySelectorAll(selector)\\n\
  24. al.gid(id) - document.getElementById(id)\\n\
  25. al.print() - Prints the object definition\\n\
  26. al.eurl(str) - document.encodeURIComponent(str)\\n\
  27. al.durl(str) - document.decodeURIComponent(str)\\n\
  28. ------------------------------------------\\n\
  29. '
  30. `;
  31.  
  32.   const shortcuts = `
  33. const al = {
  34.   help: () => console.log(${helpString}),
  35.   cl: (str) => console.log(str),
  36.   js: (obj) => JSON.stringify(obj),
  37.   jsp: (obj) => JSON.stringify(obj, null, 2),
  38.   jp: (str) => JSON.parse(str),
  39.   qs: (selector) => document.querySelector(selector),
  40.   qsa: (selector) => document.querySelectorAll(selector),
  41.   gid: (id) => document.getElementById(id),
  42.   print: () => {
  43.     const { help, ...rest } = al;
  44.     console.log(rest);
  45.   },
  46.   eurl: (str) => document.encodeURIComponent(str),
  47.   durl: (str) => document.decodeURIComponent(str)
  48. };
  49. `;
  50.  
  51.   const e = document.createElement('script');
  52.   e.id = 'injectedScript';
  53.   e.innerText = shortcuts;
  54.  
  55.   document.head.appendChild(e);
  56.  
  57.   if (typeof $ != 'function') {
  58.     window.$ = function (selector, target) {
  59.       if (typeof target == 'undefined') {
  60.         target = document;
  61.       }
  62.       return target.querySelector(selector);
  63.     }
  64.   }
  65.   if (typeof $$ != 'function') {
  66.     window.$$ = function (selector, target) {
  67.       if (typeof target == 'undefined') {
  68.         target = document;
  69.       }
  70.       return Array.from(target.querySelectorAll(selector));
  71.     }
  72.   }
  73.  
  74. })();