Some quizzes for JavaScript quirks.

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1. Promise order JavaScript Promise299 accepted
2. Promise executor JavaScript Promise294 accepted
3. Promise then callbacks JavaScript Promise203 accepted
5. block scope JavaScript162 accepted
7. Increment Operator JavaScript130 accepted
4. Promise then callbacks II JavaScript Promise119 accepted
63. in JavaScript106 accepted
61. onClick JavaScript99 accepted
39. var JavaScript98 accepted
6. Arrow Function JavaScript98 accepted
69. function JavaScript92 accepted
8. Implicit Coercion I JavaScript84 accepted
10. Equal JavaScript73 accepted
27. Hoisting I JavaScript72 accepted
68. undefined JavaScript70 accepted
41. `this` III JavaScript66 accepted
12. arguments JavaScript66 accepted
9. null and undefined JavaScript63 accepted
37. push unshift JavaScript62 accepted
29. Hoisting III JavaScript56 accepted
23. Promise.all()JavaScript53 accepted
28. Hoisting II JavaScript51 accepted
62. MessageChannel JavaScript50 accepted
44. Function call JavaScript50 accepted
60. postMessage JavaScript48 accepted
45. Hoisting VI JavaScript48 accepted
33. `this` II JavaScript46 accepted
13. Operator precedence JavaScript46 accepted
54. setTimeout(0ms)JavaScript44 accepted
38. Hoisting IV JavaScript44 accepted
66. if JavaScript42 accepted
17. reduce JavaScript42 accepted
22. min max JavaScript41 accepted
67. if II JavaScript39 accepted
59. override setter JavaScript39 accepted
50. async await JavaScript39 accepted
19. `this`JavaScript39 accepted
46. Implicit Coercion IV JavaScript38 accepted
65. Function name JavaScript36 accepted
18. Promise executor II JavaScript34 accepted
32. Hoisting IIII JavaScript33 accepted
15. instanceOf JavaScript33 accepted
26. true or false JavaScript31 accepted
11. Implicit Coercion II JavaScript31 accepted
64. reference type JavaScript29 accepted
57. non-writable JavaScript29 accepted
53. Prototype 2 JavaScript29 accepted
36. Promise.prototype.finally()JavaScript29 accepted
14. Addition vs Unary Plus JavaScript29 accepted
24. Equality & Sameness JavaScript28 accepted
16. parseInt JavaScript28 accepted
58. inherit getter setter JavaScript27 accepted
20. name for Function expression JavaScript24 accepted
48. Prototype JavaScript23 accepted
42. Hoisting V JavaScript23 accepted
52. requestAnimationFrame JavaScript22 accepted
40. RegExp.prototype.test JavaScript22 accepted
34. precedence JavaScript22 accepted
21. Array I JavaScript22 accepted
49. `this` IV JavaScript21 accepted
30. Equal II JavaScript19 accepted
25. zero JavaScript19 accepted
31. Math JavaScript18 accepted
47. Promise Order II JavaScript17 accepted
55. sparse array JavaScript15 accepted
51. method JavaScript13 accepted
43. JSON.stringify()JavaScript13 accepted
35. Implicit Coercion III JavaScript11 accepted
56. to primitive JavaScript9 accepted