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Userscript Manager Detection

A Code Snippet for detecting if the script is being ran in an Userscript Manager.

Dette script bør ikke installeres direkte. Det er et bibliotek, som andre scripts kan inkludere med metadirektivet // @require https://update.greatest.deepsurf.us/scripts/453189/1106477/Userscript%20Manager%20Detection.js 

  1. // ==UserScript==
  2. // @name         Userscript Manager Detection
  3. // @namespace    http://tampermonkey.net/
  4. // @version      1
  5. // @description  A Code Snippet for detecting if the script is being ran in an Userscript Manager.
  6. // @author       Taureon
  7. // @include      *
  8. // @grant        none
  9. // @license      Unlicense
  10. // ==/UserScript==
  11.  
  12. // Detect GreaseMonkey API objects
  13. //data type: boolean
  14. //true = It is being ran in an Userscript Manager
  15. //false = It is being ran as a bookmarklet or it is being ran in an Userscript Manager that does not have GreaseMonkey API objects
  16. var isInUserscriptContext = typeof GM === 'object' || typeof GM_info === 'object';
  17.  
  18. //example of using it
  19. //alert(isInUserscriptContext ? 'I am being ran in an Userscript' : 'I am not being ran in an Userscript');