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Quizlet - Hotkeys to Search Flash Cards by Accuracy

Press the 1-2-3-4 number keys to navigate large decks easily

  1. // ==UserScript==
  2. // @name        Quizlet - Hotkeys to Search Flash Cards by Accuracy
  3. // @namespace   QZLT_flashcardSelectKBMode
  4. // @description Press the 1-2-3-4 number keys to navigate large decks easily
  5. // @author      Kai Krause <kaikrause95@gmail.com>
  6. // @match       http://*.quizlet.com/*
  7. // @match       https://*.quizlet.com/*
  8. // @version     1.6
  9. // @grant       none
  10. // ==/UserScript==
  11.  
  12. if (!location.pathname.endsWith("-flash-cards/")) return
  13.  
  14. // Helper function to inject JS code into the page, for page-level access to JS functions and variables
  15. var injectCode = function(f) {
  16. 	var script = document.createElement("script");
  17. 	script.textContent = "(" + f.toString() + "());";
  18. 	document.head.appendChild(script);
  19. };
  20.  
  21. var theCode = function(){
  22. 	var titlesCache = [];
  23.  
  24. 	function titleSelect(charE) {
  25. 		if (!titlesCache || titlesCache.length === 0) {
  26. 			var titles = document.getElementsByClassName("SetPageTermChunk-title");
  27. 			for (var i = 0; i < titles.length; i++){
  28. 				titles[i].innerHTML += "<a style='visibility:hidden' name='" +  titles[i].textContent + "'></a>";
  29. 				titlesCache.push(titles[i].textContent);
  30. 			}
  31. 		}
  32.  
  33. 		var el = document.activeElement;
  34. 		if (el.tagName.toLowerCase() != 'textarea') {
  35. 			if (charE.keyCode == "49") {
  36. 				window.location.hash = titlesCache[0];
  37. 			} else if (charE.keyCode == "50") {
  38. 				window.location.hash = titlesCache[1];
  39. 			} else if (charE.keyCode == "51") {
  40. 				window.location.hash = titlesCache[2];
  41. 			} else if (charE.keyCode == "52") {
  42. 				window.location.hash = titlesCache[3];
  43. 			}
  44. 		}
  45. 	}
  46. 	window.addEventListener("keydown", titleSelect, true);
  47. }
  48.  
  49. injectCode(theCode);