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刷题练习
发现
中
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: Promise
1. Promise order
JavaScript
Promise
容易
5031 accepted
2. Promise executor
JavaScript
Promise
容易
4523 accepted
3. Promise then callbacks
JavaScript
Promise
容易
3262 accepted
5. scope
JavaScript
容易
2870 accepted
4. Promise then callbacks II
JavaScript
Promise
容易
2337 accepted
7. Increment Operator
JavaScript
容易
2329 accepted
8. Implicit Coercion I
JavaScript
容易
1787 accepted
6. Arrow Function
JavaScript
中等难度
1554 accepted
10. Equal
JavaScript
容易
1417 accepted
9. null and undefined
JavaScript
中等难度
1143 accepted
93. string
JavaScript
容易
1142 accepted
69. undefined
JavaScript
容易
1059 accepted
97. `this` V
JavaScript
容易
1028 accepted
12. arguments
JavaScript
中等难度
1027 accepted
13. Operator precedence
JavaScript
容易
1015 accepted
89. let
JavaScript
容易
995 accepted
27. Hoisting I
JavaScript
容易
990 accepted
28. Hoisting II
JavaScript
容易
876 accepted
70. function
JavaScript
容易
858 accepted
86. setTimeout III
JavaScript
容易
854 accepted
11. Implicit Coercion II
JavaScript
容易
803 accepted
29. Hoisting III
JavaScript
容易
802 accepted
39. var
JavaScript
容易
764 accepted
17. reduce
JavaScript
中等难度
761 accepted
19. `this`
JavaScript
容易
752 accepted
23. Promise.all()
JavaScript
容易
695 accepted
18. Promise executor II
JavaScript
容易
692 accepted
41. `this` III
JavaScript
容易
677 accepted
96. comparison
JavaScript
容易
676 accepted
99. closure
JavaScript
容易
661 accepted
79. Equal III
JavaScript
容易
661 accepted
61. onClick
JavaScript
容易
644 accepted
45. Hoisting VI
JavaScript
容易
627 accepted
67. if
JavaScript
容易
619 accepted
15. instanceOf
JavaScript
容易
614 accepted
100. `var` vs `let`
JavaScript
容易
611 accepted
94. emoji
JavaScript
容易
609 accepted
54. setTimeout(0ms)
JavaScript
容易
609 accepted
14. Addition vs Unary Plus
JavaScript
容易
598 accepted
38. Hoisting IV
JavaScript
容易
593 accepted
120. try..catch..finally
JavaScript
容易
589 accepted
37. push unshift
JavaScript
容易
585 accepted
63. in
JavaScript
容易
577 accepted
33. `this` II
JavaScript
容易
576 accepted
105. typeof
JavaScript
容易
575 accepted
117. `this` VII
JavaScript
容易
572 accepted
111. falsy
JavaScript
容易
567 accepted
47. Promise Order II
JavaScript
容易
563 accepted
76. const
JavaScript
有点难?
553 accepted
44. Function call
JavaScript
容易
548 accepted
81. setTimeout II
JavaScript
容易
546 accepted
124. comma 2
JavaScript
容易
545 accepted
16. parseInt
JavaScript
容易
543 accepted
46. Implicit Coercion IV
JavaScript
容易
537 accepted
113. push
JavaScript
中等难度
536 accepted
22. min max
JavaScript
容易
536 accepted
65. Function name
JavaScript
容易
529 accepted
91. largest Array index
JavaScript
容易
515 accepted
107. `this` VI
JavaScript
容易
511 accepted
72. Array length
JavaScript
容易
506 accepted
49. `this` IV
JavaScript
容易
501 accepted
68. if II
JavaScript
中等难度
495 accepted
92. NaN
JavaScript
容易
492 accepted
88. try...catch
JavaScript
容易
474 accepted
95. number format
JavaScript
容易
472 accepted
32. Hoisting IIII
JavaScript
容易
468 accepted
21. Array I
JavaScript
中等难度
467 accepted
50. async await
JavaScript
容易
465 accepted
36. Promise.prototype.finally()
JavaScript
容易
457 accepted
24. Equality & Sameness
JavaScript
容易
451 accepted
20. name for Function expression
JavaScript
中等难度
448 accepted
114. constructor
JavaScript
容易
440 accepted
115. parseInt II
JavaScript
容易
436 accepted
48. Prototype
JavaScript
容易
435 accepted
53. Prototype 2
JavaScript
容易
432 accepted
84. Array.prototype.sort()
JavaScript
中等难度
431 accepted
26. true or false
JavaScript
容易
426 accepted
103. Promise Order III
JavaScript
容易
425 accepted
74. Typed Array length
JavaScript
容易
425 accepted
116. strict
JavaScript
容易
422 accepted
106. Promise.all() II
JavaScript
容易
410 accepted
109. isNaN()
JavaScript
容易
405 accepted
123. return in Generator 2
JavaScript
容易
390 accepted
34. precedence
JavaScript
容易
388 accepted
87. instanceOf 2
JavaScript
容易
375 accepted
122. Iterable
JavaScript
容易
372 accepted
98. Promise executor IV
Promise
容易
369 accepted
42. Hoisting V
JavaScript
中等难度
369 accepted
102. Arrow Function II
JavaScript
容易
362 accepted
108. property key
JavaScript
容易
343 accepted
64. reference type
JavaScript
容易
343 accepted
60. postMessage
JavaScript
容易
341 accepted
25. zero
JavaScript
容易
341 accepted
30. Equal II
JavaScript
容易
338 accepted
66. comma
JavaScript
容易
325 accepted
101. Equal IV
JavaScript
容易
324 accepted
104. Inheritance
JavaScript
容易
323 accepted
59. override setter
JavaScript
容易
316 accepted
112. Symbol
JavaScript
容易
307 accepted
31. Math
JavaScript
容易
299 accepted
43. JSON.stringify()
JavaScript
中等难度
298 accepted
40. RegExp.prototype.test
JavaScript
容易
290 accepted
62. MessageChannel
JavaScript
容易
285 accepted
83. Plus Plus
JavaScript
容易
281 accepted
57. non-writable
JavaScript
容易
281 accepted
77. parseInt 2
JavaScript
容易
263 accepted
52. requestAnimationFrame
JavaScript
容易
263 accepted
118. structuredClone()
JavaScript
容易
255 accepted
73. window name
JavaScript
中等难度
249 accepted
90. array keys
JavaScript
中等难度
240 accepted
55. sparse array
JavaScript
中等难度
240 accepted
71. two-way generator
JavaScript
容易
234 accepted
35. Implicit Coercion III
JavaScript
容易
229 accepted
110. yield
JavaScript
容易
225 accepted
58. inherit getter setter
JavaScript
容易
220 accepted
56. to primitive
JavaScript
容易
213 accepted
75. meaningless calculation
JavaScript
容易
209 accepted
130. async
JavaScript
容易
201 accepted
51. method
JavaScript
中等难度
201 accepted
85. String.raw()
JavaScript
中等难度
200 accepted
126. Object.keys()
JavaScript
中等难度
199 accepted
80. Proxy I
JavaScript
容易
183 accepted
82. Proxy II
JavaScript
容易
178 accepted
121. Generator return()
JavaScript
中等难度
169 accepted
119. return in Generator
JavaScript
中等难度
140 accepted
78. RegExp
JavaScript
RegExp
中等难度
131 accepted
125. try...catch...finally 2
JavaScript
中等难度
119 accepted
128. setTimeout IV
JavaScript
中等难度
76 accepted
127. JSON.stringify() II
JavaScript
中等难度
46 accepted
131. return await
JavaScript
中等难度
32 accepted
129. Function II
JavaScript
没多少人挑战
20 accepted