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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。
排序
难度
解答状态
排序: 最多被尝试
tag: JavaScript
tag: Promise
1. Promise order
JavaScript
Promise
容易
15371 tried
3. Promise then callbacks
JavaScript
Promise
容易
8027 tried
4. Promise then callbacks II
JavaScript
Promise
容易
7325 tried
2. Promise executor
JavaScript
Promise
容易
7173 tried
5. scope
JavaScript
容易
6770 tried
6. Arrow Function
JavaScript
中等难度
5843 tried
76. const
JavaScript
有点难?
5698 tried
12. arguments
JavaScript
中等难度
5638 tried
8. Implicit Coercion I
JavaScript
容易
5636 tried
7. Increment Operator
JavaScript
容易
5361 tried
9. null and undefined
JavaScript
中等难度
3833 tried
10. Equal
JavaScript
容易
3790 tried
97. `this` V
JavaScript
容易
3060 tried
93. string
JavaScript
容易
3030 tried
27. Hoisting I
JavaScript
容易
2642 tried
70. function
JavaScript
容易
2640 tried
11. Implicit Coercion II
JavaScript
容易
2613 tried
17. reduce
JavaScript
中等难度
2552 tried
19. `this`
JavaScript
容易
2309 tried
29. Hoisting III
JavaScript
容易
2170 tried
68. if II
JavaScript
中等难度
2085 tried
67. if
JavaScript
容易
2055 tried
21. Array I
JavaScript
中等难度
2031 tried
20. name for Function expression
JavaScript
中等难度
1900 tried
14. Addition vs Unary Plus
JavaScript
容易
1874 tried
13. Operator precedence
JavaScript
容易
1830 tried
113. push
JavaScript
中等难度
1822 tried
120. try..catch..finally
JavaScript
容易
1782 tried
86. setTimeout III
JavaScript
容易
1782 tried
28. Hoisting II
JavaScript
容易
1782 tried
117. `this` VII
JavaScript
容易
1747 tried
89. let
JavaScript
容易
1711 tried
69. undefined
JavaScript
容易
1707 tried
41. `this` III
JavaScript
容易
1687 tried
84. Array.prototype.sort()
JavaScript
中等难度
1677 tried
15. instanceOf
JavaScript
容易
1663 tried
23. Promise.all()
JavaScript
容易
1654 tried
38. Hoisting IV
JavaScript
容易
1627 tried
61. onClick
JavaScript
容易
1616 tried
16. parseInt
JavaScript
容易
1614 tried
88. try...catch
JavaScript
容易
1535 tried
96. comparison
JavaScript
容易
1504 tried
42. Hoisting V
JavaScript
中等难度
1499 tried
81. setTimeout II
JavaScript
容易
1497 tried
32. Hoisting IIII
JavaScript
容易
1486 tried
47. Promise Order II
JavaScript
容易
1473 tried
50. async await
JavaScript
容易
1412 tried
36. Promise.prototype.finally()
JavaScript
容易
1406 tried
54. setTimeout(0ms)
JavaScript
容易
1390 tried
72. Array length
JavaScript
容易
1387 tried
39. var
JavaScript
容易
1380 tried
18. Promise executor II
JavaScript
容易
1374 tried
114. constructor
JavaScript
容易
1369 tried
94. emoji
JavaScript
容易
1366 tried
92. NaN
JavaScript
容易
1332 tried
100. `var` vs `let`
JavaScript
容易
1306 tried
95. number format
JavaScript
容易
1298 tried
116. strict
JavaScript
容易
1286 tried
73. window name
JavaScript
中等难度
1231 tried
33. `this` II
JavaScript
容易
1223 tried
22. min max
JavaScript
容易
1209 tried
65. Function name
JavaScript
容易
1201 tried
43. JSON.stringify()
JavaScript
中等难度
1190 tried
49. `this` IV
JavaScript
容易
1150 tried
55. sparse array
JavaScript
中等难度
1146 tried
45. Hoisting VI
JavaScript
容易
1141 tried
123. return in Generator 2
JavaScript
容易
1069 tried
25. zero
JavaScript
容易
1066 tried
124. comma 2
JavaScript
容易
1051 tried
99. closure
JavaScript
容易
1036 tried
91. largest Array index
JavaScript
容易
1030 tried
37. push unshift
JavaScript
容易
1026 tried
63. in
JavaScript
容易
1008 tried
26. true or false
JavaScript
容易
995 tried
90. array keys
JavaScript
中等难度
988 tried
87. instanceOf 2
JavaScript
容易
982 tried
51. method
JavaScript
中等难度
977 tried
111. falsy
JavaScript
容易
973 tried
79. Equal III
JavaScript
容易
962 tried
44. Function call
JavaScript
容易
960 tried
24. Equality & Sameness
JavaScript
容易
955 tried
109. isNaN()
JavaScript
容易
947 tried
64. reference type
JavaScript
容易
947 tried
103. Promise Order III
JavaScript
容易
946 tried
98. Promise executor IV
Promise
容易
945 tried
46. Implicit Coercion IV
JavaScript
容易
914 tried
48. Prototype
JavaScript
容易
913 tried
105. typeof
JavaScript
容易
908 tried
107. `this` VI
JavaScript
容易
901 tried
115. parseInt II
JavaScript
容易
895 tried
122. Iterable
JavaScript
容易
886 tried
60. postMessage
JavaScript
容易
871 tried
30. Equal II
JavaScript
容易
837 tried
106. Promise.all() II
JavaScript
容易
831 tried
108. property key
JavaScript
容易
827 tried
83. Plus Plus
JavaScript
容易
815 tried
102. Arrow Function II
JavaScript
容易
813 tried
53. Prototype 2
JavaScript
容易
792 tried
126. Object.keys()
JavaScript
中等难度
783 tried
74. Typed Array length
JavaScript
容易
775 tried
77. parseInt 2
JavaScript
容易
757 tried
118. structuredClone()
JavaScript
容易
755 tried
62. MessageChannel
JavaScript
容易
740 tried
85. String.raw()
JavaScript
中等难度
689 tried
52. requestAnimationFrame
JavaScript
容易
676 tried
34. precedence
JavaScript
容易
673 tried
121. Generator return()
JavaScript
中等难度
656 tried
78. RegExp
JavaScript
RegExp
中等难度
641 tried
112. Symbol
JavaScript
容易
638 tried
56. to primitive
JavaScript
容易
622 tried
31. Math
JavaScript
容易
619 tried
130. async
JavaScript
容易
605 tried
35. Implicit Coercion III
JavaScript
容易
585 tried
101. Equal IV
JavaScript
容易
575 tried
110. yield
JavaScript
容易
569 tried
66. comma
JavaScript
容易
569 tried
59. override setter
JavaScript
容易
549 tried
104. Inheritance
JavaScript
容易
546 tried
57. non-writable
JavaScript
容易
545 tried
82. Proxy II
JavaScript
容易
517 tried
119. return in Generator
JavaScript
中等难度
512 tried
80. Proxy I
JavaScript
容易
495 tried
40. RegExp.prototype.test
JavaScript
容易
494 tried
58. inherit getter setter
JavaScript
容易
467 tried
125. try...catch...finally 2
JavaScript
中等难度
424 tried
71. two-way generator
JavaScript
容易
413 tried
75. meaningless calculation
JavaScript
容易
405 tried
128. setTimeout IV
JavaScript
中等难度
294 tried
127. JSON.stringify() II
JavaScript
中等难度
230 tried
131. return await
JavaScript
中等难度
175 tried
129. Function II
JavaScript
没多少人挑战
64 tried