JavaScript 小测验

测试你对JavaScript这一门语言本身的掌握情况。

排序: 最多通过

1. Promise order JavaScript Promise 容易8503 accepted
2. Promise executor JavaScript Promise 容易7768 accepted
3. Promise then callbacks JavaScript Promise 容易5961 accepted
5. scope JavaScript 容易5175 accepted
4. Promise then callbacks II JavaScript Promise 容易4335 accepted
7. Increment Operator JavaScript 容易4291 accepted
8. Implicit Coercion I JavaScript 容易3301 accepted
6. Arrow Function JavaScript 中等难度2791 accepted
10. Equal JavaScript 容易2684 accepted
9. null and undefined JavaScript 中等难度2110 accepted
13. Operator precedence JavaScript 容易1896 accepted
27. Hoisting I JavaScript 容易1739 accepted
12. arguments JavaScript 中等难度1737 accepted
28. Hoisting II JavaScript 容易1589 accepted
29. Hoisting III JavaScript 容易1465 accepted
11. Implicit Coercion II JavaScript 中等难度1409 accepted
69. undefined JavaScript 容易1409 accepted
93. string JavaScript 容易1371 accepted
19. `this`JavaScript 容易1343 accepted
89. let JavaScript 容易1327 accepted
97. `this` V JavaScript 容易1316 accepted
17. reduce JavaScript 中等难度1268 accepted
18. Promise executor II JavaScript 容易1232 accepted
23. Promise.all()JavaScript 容易1210 accepted
39. var JavaScript 容易1189 accepted
86. setTimeout III JavaScript 容易1128 accepted
14. Addition vs Unary Plus JavaScript 容易1097 accepted
99. closure JavaScript 容易1094 accepted
15. instanceOf JavaScript 容易1091 accepted
70. function JavaScript 容易1087 accepted
41. `this` III JavaScript 容易1072 accepted
45. Hoisting VI JavaScript 容易1013 accepted
38. Hoisting IV JavaScript 容易1004 accepted
33. `this` II JavaScript 容易976 accepted
54. setTimeout(0ms)JavaScript 容易966 accepted
100. `var` vs `let`JavaScript 容易965 accepted
79. Equal III JavaScript 容易960 accepted
22. min max JavaScript 容易938 accepted
37. push unshift JavaScript 容易929 accepted
16. parseInt JavaScript 容易922 accepted
47. Promise Order II JavaScript 容易912 accepted
120. try..catch..finally JavaScript 容易894 accepted
105. typeof JavaScript 容易881 accepted
61. onClick JavaScript 容易879 accepted
67. if JavaScript 容易868 accepted
46. Implicit Coercion IV JavaScript 容易849 accepted
44. Function call JavaScript 容易842 accepted
124. comma 2 JavaScript 容易835 accepted
111. falsy JavaScript 容易829 accepted
107. `this` VI JavaScript 容易823 accepted
32. Hoisting IIII JavaScript 容易822 accepted
96. comparison JavaScript 容易820 accepted
117. `this` VII JavaScript 容易809 accepted
21. Array I JavaScript 中等难度792 accepted
49. `this` IV JavaScript 容易792 accepted
81. setTimeout II JavaScript 容易790 accepted
63. in JavaScript 容易778 accepted
36. Promise.prototype.finally()JavaScript 容易769 accepted
24. Equality & Sameness JavaScript 容易768 accepted
76. const JavaScript 中等难度766 accepted
20. name for Function expression JavaScript 中等难度762 accepted
50. async await JavaScript 容易752 accepted
113. push JavaScript 容易745 accepted
26. true or false JavaScript 容易733 accepted
94. emoji JavaScript 容易726 accepted
65. Function name JavaScript 容易725 accepted
103. Promise Order III JavaScript 容易719 accepted
72. Array length JavaScript 容易707 accepted
68. if II JavaScript 中等难度674 accepted
106. Promise.all() II JavaScript 容易660 accepted
48. Prototype JavaScript 容易657 accepted
130. async JavaScript 容易646 accepted
53. Prototype 2 JavaScript 容易634 accepted
88. try...catch JavaScript 容易632 accepted
91. largest Array index JavaScript 容易628 accepted
34. precedence JavaScript 容易621 accepted
114. constructor JavaScript 容易612 accepted
92. NaN JavaScript 容易605 accepted
98. Promise executor IV Promise 容易603 accepted
42. Hoisting V JavaScript 中等难度602 accepted
116. strict JavaScript 容易602 accepted
109. isNaN()JavaScript 容易588 accepted
30. Equal II JavaScript 容易585 accepted
84. Array.prototype.sort()JavaScript 中等难度581 accepted
115. parseInt II JavaScript 容易573 accepted
95. number format JavaScript 容易562 accepted
25. zero JavaScript 容易556 accepted
74. Typed Array length JavaScript 容易544 accepted
102. Arrow Function II JavaScript 容易534 accepted
122. Iterable JavaScript 容易531 accepted
66. comma JavaScript 容易523 accepted
104. Inheritance JavaScript 容易509 accepted
123. return in Generator 2 JavaScript 容易504 accepted
108. property key JavaScript 容易498 accepted
101. Equal IV JavaScript 容易491 accepted
64. reference type JavaScript 容易486 accepted
126. Object.keys()JavaScript 中等难度479 accepted
87. instanceOf 2 JavaScript 容易475 accepted
60. postMessage JavaScript 容易474 accepted
31. Math JavaScript 容易472 accepted
43. JSON.stringify()JavaScript 中等难度469 accepted
59. override setter JavaScript 容易460 accepted
112. Symbol JavaScript 容易432 accepted
40. RegExp.prototype.test JavaScript 容易427 accepted
131. return await JavaScript 中等难度427 accepted
57. non-writable JavaScript 容易419 accepted
62. MessageChannel JavaScript 容易403 accepted
35. Implicit Coercion III JavaScript 容易402 accepted
83. Plus Plus JavaScript 容易397 accepted
55. sparse array JavaScript 中等难度389 accepted
73. window name JavaScript 中等难度363 accepted
77. parseInt 2 JavaScript 容易344 accepted
51. method JavaScript 中等难度339 accepted
58. inherit getter setter JavaScript 容易339 accepted
118. structuredClone()JavaScript 容易339 accepted
71. two-way generator JavaScript 容易334 accepted
125. try...catch...finally 2 JavaScript 容易331 accepted
52. requestAnimationFrame JavaScript 中等难度318 accepted
110. yield JavaScript 容易318 accepted
56. to primitive JavaScript 容易315 accepted
90. array keys JavaScript 中等难度297 accepted
132. banana JavaScript 容易291 accepted
75. meaningless calculation JavaScript 容易284 accepted
128. setTimeout IV JavaScript 中等难度278 accepted
80. Proxy I JavaScript 容易261 accepted
85. String.raw() JavaScript 容易256 accepted
121. Generator return()JavaScript 中等难度251 accepted
82. Proxy II JavaScript 容易246 accepted
119. return in Generator JavaScript 容易229 accepted
127. JSON.stringify() II JavaScript 中等难度213 accepted
78. RegExp JavaScript RegExp 中等难度192 accepted
134. Object.groupBy JavaScript 中等难度114 accepted
133. toString JavaScript 容易108 accepted
129. Function II JavaScript 容易102 accepted