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JavaScript Quizzes
Test your knowledge of JavaScript the language itself.
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Difficulty: medium
tag: JavaScript
6. Arrow Function
JavaScript
medium
5843 tried
12. arguments
JavaScript
medium
5638 tried
9. null and undefined
JavaScript
medium
3831 tried
17. reduce
JavaScript
medium
2552 tried
68. if II
JavaScript
medium
2085 tried
21. Array I
JavaScript
medium
2031 tried
20. name for Function expression
JavaScript
medium
1900 tried
113. push
JavaScript
medium
1817 tried
84. Array.prototype.sort()
JavaScript
medium
1677 tried
42. Hoisting V
JavaScript
medium
1499 tried
73. window name
JavaScript
medium
1231 tried
43. JSON.stringify()
JavaScript
medium
1190 tried
55. sparse array
JavaScript
medium
1146 tried
90. array keys
JavaScript
medium
988 tried
51. method
JavaScript
medium
977 tried
126. Object.keys()
JavaScript
medium
783 tried
85. String.raw()
JavaScript
medium
689 tried
121. Generator return()
JavaScript
medium
656 tried
78. RegExp
JavaScript
RegExp
medium
641 tried
119. return in Generator
JavaScript
medium
512 tried
125. try...catch...finally 2
JavaScript
medium
424 tried
128. setTimeout IV
JavaScript
medium
293 tried
127. JSON.stringify() II
JavaScript
medium
229 tried
131. return await
JavaScript
medium
175 tried