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JavaScript 小测验
测试你对JavaScript这一门语言本身的掌握情况。
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排序: 最多被尝试
tag: JavaScript
tag: Promise
tag: RegExp
1. Promise order
JavaScript
Promise
容易
15620 tried
3. Promise then callbacks
JavaScript
Promise
容易
8160 tried
4. Promise then callbacks II
JavaScript
Promise
容易
7497 tried
2. Promise executor
JavaScript
Promise
容易
7301 tried
5. scope
JavaScript
容易
6885 tried
6. Arrow Function
JavaScript
中等难度
5968 tried
12. arguments
JavaScript
中等难度
5766 tried
76. const
JavaScript
有点难?
5753 tried
8. Implicit Coercion I
JavaScript
容易
5744 tried
7. Increment Operator
JavaScript
容易
5474 tried
9. null and undefined
JavaScript
中等难度
3901 tried
10. Equal
JavaScript
容易
3862 tried
97. `this` V
JavaScript
容易
3089 tried
93. string
JavaScript
容易
3053 tried
27. Hoisting I
JavaScript
容易
2697 tried
11. Implicit Coercion II
JavaScript
容易
2690 tried
70. function
JavaScript
容易
2663 tried
17. reduce
JavaScript
中等难度
2603 tried
19. `this`
JavaScript
容易
2356 tried
29. Hoisting III
JavaScript
容易
2234 tried
68. if II
JavaScript
中等难度
2099 tried
21. Array I
JavaScript
中等难度
2085 tried
67. if
JavaScript
容易
2070 tried
20. name for Function expression
JavaScript
中等难度
1937 tried
14. Addition vs Unary Plus
JavaScript
容易
1915 tried
13. Operator precedence
JavaScript
容易
1872 tried
113. push
JavaScript
中等难度
1861 tried
120. try..catch..finally
JavaScript
容易
1834 tried
28. Hoisting II
JavaScript
容易
1828 tried
86. setTimeout III
JavaScript
容易
1799 tried
117. `this` VII
JavaScript
容易
1790 tried
89. let
JavaScript
容易
1735 tried
69. undefined
JavaScript
容易
1725 tried
41. `this` III
JavaScript
容易
1711 tried
23. Promise.all()
JavaScript
容易
1696 tried
15. instanceOf
JavaScript
容易
1695 tried
84. Array.prototype.sort()
JavaScript
中等难度
1688 tried
38. Hoisting IV
JavaScript
容易
1649 tried
16. parseInt
JavaScript
容易
1648 tried
61. onClick
JavaScript
容易
1623 tried
88. try...catch
JavaScript
容易
1549 tried
42. Hoisting V
JavaScript
中等难度
1520 tried
96. comparison
JavaScript
容易
1518 tried
32. Hoisting IIII
JavaScript
容易
1518 tried
81. setTimeout II
JavaScript
容易
1507 tried
47. Promise Order II
JavaScript
容易
1496 tried
50. async await
JavaScript
容易
1454 tried
36. Promise.prototype.finally()
JavaScript
容易
1424 tried
54. setTimeout(0ms)
JavaScript
容易
1407 tried
18. Promise executor II
JavaScript
容易
1406 tried
39. var
JavaScript
容易
1399 tried
72. Array length
JavaScript
容易
1395 tried
114. constructor
JavaScript
容易
1389 tried
94. emoji
JavaScript
容易
1370 tried
92. NaN
JavaScript
容易
1347 tried
100. `var` vs `let`
JavaScript
容易
1344 tried
95. number format
JavaScript
容易
1303 tried
116. strict
JavaScript
容易
1300 tried
73. window name
JavaScript
中等难度
1242 tried
33. `this` II
JavaScript
容易
1238 tried
22. min max
JavaScript
容易
1238 tried
43. JSON.stringify()
JavaScript
中等难度
1232 tried
65. Function name
JavaScript
容易
1216 tried
55. sparse array
JavaScript
中等难度
1168 tried
49. `this` IV
JavaScript
容易
1167 tried
45. Hoisting VI
JavaScript
容易
1158 tried
25. zero
JavaScript
容易
1103 tried
123. return in Generator 2
JavaScript
容易
1078 tried
124. comma 2
JavaScript
容易
1077 tried
99. closure
JavaScript
容易
1064 tried
91. largest Array index
JavaScript
容易
1038 tried
37. push unshift
JavaScript
容易
1038 tried
63. in
JavaScript
容易
1019 tried
26. true or false
JavaScript
容易
1014 tried
111. falsy
JavaScript
容易
999 tried
90. array keys
JavaScript
中等难度
997 tried
87. instanceOf 2
JavaScript
容易
995 tried
51. method
JavaScript
中等难度
993 tried
79. Equal III
JavaScript
容易
980 tried
24. Equality & Sameness
JavaScript
容易
975 tried
44. Function call
JavaScript
容易
972 tried
109. isNaN()
JavaScript
容易
965 tried
103. Promise Order III
JavaScript
容易
965 tried
98. Promise executor IV
Promise
容易
957 tried
64. reference type
JavaScript
容易
950 tried
105. typeof
JavaScript
容易
925 tried
46. Implicit Coercion IV
JavaScript
容易
924 tried
48. Prototype
JavaScript
容易
923 tried
107. `this` VI
JavaScript
容易
922 tried
122. Iterable
JavaScript
容易
908 tried
115. parseInt II
JavaScript
容易
907 tried
60. postMessage
JavaScript
容易
884 tried
30. Equal II
JavaScript
容易
858 tried
106. Promise.all() II
JavaScript
容易
846 tried
108. property key
JavaScript
容易
834 tried
126. Object.keys()
JavaScript
中等难度
831 tried
102. Arrow Function II
JavaScript
容易
829 tried
83. Plus Plus
JavaScript
容易
825 tried
53. Prototype 2
JavaScript
容易
796 tried
74. Typed Array length
JavaScript
容易
779 tried
118. structuredClone()
JavaScript
容易
769 tried
77. parseInt 2
JavaScript
容易
764 tried
62. MessageChannel
JavaScript
容易
745 tried
130. async
JavaScript
容易
692 tried
85. String.raw()
JavaScript
中等难度
689 tried
52. requestAnimationFrame
JavaScript
容易
687 tried
34. precedence
JavaScript
容易
680 tried
121. Generator return()
JavaScript
中等难度
659 tried
112. Symbol
JavaScript
容易
652 tried
78. RegExp
JavaScript
RegExp
中等难度
646 tried
31. Math
JavaScript
容易
638 tried
56. to primitive
JavaScript
容易
636 tried
35. Implicit Coercion III
JavaScript
容易
596 tried
101. Equal IV
JavaScript
容易
589 tried
66. comma
JavaScript
容易
579 tried
110. yield
JavaScript
容易
576 tried
59. override setter
JavaScript
容易
559 tried
104. Inheritance
JavaScript
容易
554 tried
57. non-writable
JavaScript
容易
554 tried
119. return in Generator
JavaScript
中等难度
523 tried
82. Proxy II
JavaScript
容易
518 tried
80. Proxy I
JavaScript
容易
504 tried
40. RegExp.prototype.test
JavaScript
容易
503 tried
58. inherit getter setter
JavaScript
容易
470 tried
125. try...catch...finally 2
JavaScript
中等难度
457 tried
71. two-way generator
JavaScript
容易
419 tried
75. meaningless calculation
JavaScript
容易
406 tried
128. setTimeout IV
JavaScript
中等难度
341 tried
131. return await
JavaScript
中等难度
309 tried
127. JSON.stringify() II
JavaScript
中等难度
260 tried
129. Function II
JavaScript
没多少人挑战
74 tried