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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: 最多通过
tag: JavaScript
tag: RegExp
tag: Promise
1. Promise order
JavaScript
Promise
容易
5119 accepted
2. Promise executor
JavaScript
Promise
容易
4602 accepted
3. Promise then callbacks
JavaScript
Promise
容易
3328 accepted
5. scope
JavaScript
容易
2924 accepted
4. Promise then callbacks II
JavaScript
Promise
容易
2389 accepted
7. Increment Operator
JavaScript
容易
2373 accepted
8. Implicit Coercion I
JavaScript
容易
1822 accepted
6. Arrow Function
JavaScript
中等难度
1588 accepted
10. Equal
JavaScript
容易
1448 accepted
9. null and undefined
JavaScript
中等难度
1162 accepted
93. string
JavaScript
容易
1156 accepted
69. undefined
JavaScript
容易
1071 accepted
12. arguments
JavaScript
中等难度
1050 accepted
13. Operator precedence
JavaScript
容易
1043 accepted
97. `this` V
JavaScript
容易
1037 accepted
27. Hoisting I
JavaScript
容易
1012 accepted
89. let
JavaScript
容易
1009 accepted
28. Hoisting II
JavaScript
容易
898 accepted
70. function
JavaScript
容易
865 accepted
86. setTimeout III
JavaScript
容易
863 accepted
29. Hoisting III
JavaScript
容易
826 accepted
11. Implicit Coercion II
JavaScript
容易
824 accepted
39. var
JavaScript
容易
779 accepted
17. reduce
JavaScript
中等难度
777 accepted
19. `this`
JavaScript
容易
768 accepted
23. Promise.all()
JavaScript
容易
711 accepted
18. Promise executor II
JavaScript
容易
705 accepted
41. `this` III
JavaScript
容易
691 accepted
99. closure
JavaScript
容易
685 accepted
96. comparison
JavaScript
容易
684 accepted
79. Equal III
JavaScript
容易
676 accepted
61. onClick
JavaScript
容易
649 accepted
45. Hoisting VI
JavaScript
容易
640 accepted
15. instanceOf
JavaScript
容易
630 accepted
100. `var` vs `let`
JavaScript
容易
629 accepted
67. if
JavaScript
容易
624 accepted
54. setTimeout(0ms)
JavaScript
容易
621 accepted
14. Addition vs Unary Plus
JavaScript
容易
613 accepted
94. emoji
JavaScript
容易
612 accepted
120. try..catch..finally
JavaScript
容易
609 accepted
38. Hoisting IV
JavaScript
容易
606 accepted
37. push unshift
JavaScript
容易
594 accepted
105. typeof
JavaScript
容易
591 accepted
117. `this` VII
JavaScript
容易
588 accepted
33. `this` II
JavaScript
容易
584 accepted
111. falsy
JavaScript
容易
583 accepted
63. in
JavaScript
容易
582 accepted
47. Promise Order II
JavaScript
容易
575 accepted
124. comma 2
JavaScript
容易
568 accepted
76. const
JavaScript
有点难?
562 accepted
44. Function call
JavaScript
容易
557 accepted
16. parseInt
JavaScript
容易
556 accepted
81. setTimeout II
JavaScript
容易
551 accepted
113. push
JavaScript
中等难度
550 accepted
22. min max
JavaScript
容易
549 accepted
46. Implicit Coercion IV
JavaScript
容易
547 accepted
65. Function name
JavaScript
容易
536 accepted
107. `this` VI
JavaScript
容易
523 accepted
91. largest Array index
JavaScript
容易
520 accepted
49. `this` IV
JavaScript
容易
511 accepted
72. Array length
JavaScript
容易
510 accepted
68. if II
JavaScript
中等难度
500 accepted
92. NaN
JavaScript
容易
497 accepted
88. try...catch
JavaScript
容易
480 accepted
21. Array I
JavaScript
中等难度
479 accepted
95. number format
JavaScript
容易
476 accepted
32. Hoisting IIII
JavaScript
容易
476 accepted
50. async await
JavaScript
容易
474 accepted
36. Promise.prototype.finally()
JavaScript
容易
466 accepted
24. Equality & Sameness
JavaScript
容易
461 accepted
20. name for Function expression
JavaScript
中等难度
458 accepted
114. constructor
JavaScript
容易
447 accepted
115. parseInt II
JavaScript
容易
444 accepted
48. Prototype
JavaScript
容易
441 accepted
84. Array.prototype.sort()
JavaScript
中等难度
436 accepted
53. Prototype 2
JavaScript
容易
436 accepted
103. Promise Order III
JavaScript
容易
434 accepted
26. true or false
JavaScript
容易
434 accepted
116. strict
JavaScript
容易
429 accepted
74. Typed Array length
JavaScript
容易
427 accepted
106. Promise.all() II
JavaScript
容易
416 accepted
109. isNaN()
JavaScript
容易
413 accepted
34. precedence
JavaScript
容易
393 accepted
123. return in Generator 2
JavaScript
容易
392 accepted
122. Iterable
JavaScript
容易
382 accepted
87. instanceOf 2
JavaScript
容易
378 accepted
42. Hoisting V
JavaScript
中等难度
377 accepted
102. Arrow Function II
JavaScript
容易
373 accepted
98. Promise executor IV
Promise
容易
373 accepted
25. zero
JavaScript
容易
350 accepted
60. postMessage
JavaScript
容易
347 accepted
108. property key
JavaScript
容易
346 accepted
64. reference type
JavaScript
容易
345 accepted
30. Equal II
JavaScript
容易
344 accepted
66. comma
JavaScript
容易
332 accepted
104. Inheritance
JavaScript
容易
331 accepted
101. Equal IV
JavaScript
容易
330 accepted
59. override setter
JavaScript
容易
321 accepted
112. Symbol
JavaScript
容易
312 accepted
43. JSON.stringify()
JavaScript
中等难度
304 accepted
31. Math
JavaScript
容易
301 accepted
40. RegExp.prototype.test
JavaScript
容易
295 accepted
62. MessageChannel
JavaScript
容易
289 accepted
57. non-writable
JavaScript
容易
285 accepted
83. Plus Plus
JavaScript
容易
284 accepted
77. parseInt 2
JavaScript
容易
266 accepted
52. requestAnimationFrame
JavaScript
容易
265 accepted
118. structuredClone()
JavaScript
容易
260 accepted
73. window name
JavaScript
中等难度
255 accepted
130. async
JavaScript
容易
244 accepted
55. sparse array
JavaScript
中等难度
243 accepted
90. array keys
JavaScript
中等难度
241 accepted
71. two-way generator
JavaScript
容易
238 accepted
35. Implicit Coercion III
JavaScript
容易
234 accepted
110. yield
JavaScript
容易
227 accepted
58. inherit getter setter
JavaScript
容易
221 accepted
56. to primitive
JavaScript
容易
218 accepted
126. Object.keys()
JavaScript
中等难度
214 accepted
75. meaningless calculation
JavaScript
容易
209 accepted
51. method
JavaScript
中等难度
203 accepted
85. String.raw()
JavaScript
中等难度
200 accepted
80. Proxy I
JavaScript
容易
185 accepted
82. Proxy II
JavaScript
容易
179 accepted
121. Generator return()
JavaScript
中等难度
170 accepted
119. return in Generator
JavaScript
中等难度
141 accepted
78. RegExp
JavaScript
RegExp
中等难度
132 accepted
125. try...catch...finally 2
JavaScript
中等难度
130 accepted
128. setTimeout IV
JavaScript
中等难度
86 accepted
131. return await
JavaScript
中等难度
74 accepted
127. JSON.stringify() II
JavaScript
中等难度
53 accepted
129. Function II
JavaScript
没多少人挑战
22 accepted