buy us
a coffee

Coding- problems

Answer- questions

Design- systems

TypeScript- puzzles

Discussanything

buy us
a coffee

Some quizzes for JavaScript quirks.

You have solved 0 quiz.show unsolved only
Sort bymost tried most accepted easiest most liked

74. meaningless calculation JavaScript
73. Typed Array length JavaScript
72. window name JavaScript
71. Array length JavaScript
70. two-way generator JavaScript
69. function JavaScript
68. undefined JavaScript
67. if II JavaScript
66. if JavaScript
65. Function name JavaScript
64. reference type JavaScript
63. in JavaScript
62. MessageChannel JavaScript
61. onClick JavaScript
60. postMessage JavaScript
59. override setter JavaScript
58. inherit getter setter JavaScript
57. non-writable JavaScript
56. to primitive JavaScript
55. sparse array JavaScript
54. setTimeout(0ms)JavaScript
53. Prototype 2 JavaScript
52. requestAnimationFrame JavaScript
51. method JavaScript
50. async await JavaScript
49. `this` IV JavaScript
48. Prototype JavaScript
47. Promise Order II JavaScript
46. Implicit Coercion IV JavaScript
45. Hoisting VI JavaScript
44. Function call JavaScript
43. JSON.stringify()JavaScript
42. Hoisting V JavaScript
41. `this` III JavaScript
40. RegExp.prototype.test JavaScript
39. var JavaScript
38. Hoisting IV JavaScript
37. push unshift JavaScript
36. Promise.prototype.finally()JavaScript
35. Implicit Coercion III JavaScript
34. precedence JavaScript
33. `this` II JavaScript
32. Hoisting IIII JavaScript
31. Math JavaScript
30. Equal II JavaScript
29. Hoisting III JavaScript
28. Hoisting II JavaScript
27. Hoisting I JavaScript
26. true or false JavaScript
25. zero JavaScript
24. Equality & Sameness JavaScript
23. Promise.all()JavaScript
22. min max JavaScript
21. Array I JavaScript
20. name for Function expression JavaScript
19. `this`JavaScript
18. Promise executor II JavaScript
17. reduce JavaScript
16. parseInt JavaScript
15. instanceOf JavaScript
14. Addition vs Unary Plus JavaScript
13. Operator precedence JavaScript
12. arguments JavaScript
11. Implicit Coercion II JavaScript
10. Equal JavaScript
9. null and undefined JavaScript
8. Implicit Coercion I JavaScript
7. Increment Operator JavaScript
6. Arrow Function JavaScript
5. block scope JavaScript
4. Promise then callbacks II JavaScript Promise
3. Promise then callbacks JavaScript Promise
2. Promise executor JavaScript Promise
1. Promise order JavaScript Promise