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JavaScript Quizzes
Test your knowledge of JavaScript the language itself.
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Difficulty: medium
tag: JavaScript
tag: RegExp
6. Arrow Function
JavaScript
medium
5964 tried
12. arguments
JavaScript
medium
5766 tried
9. null and undefined
JavaScript
medium
3901 tried
17. reduce
JavaScript
medium
2603 tried
68. if II
JavaScript
medium
2099 tried
21. Array I
JavaScript
medium
2085 tried
20. name for Function expression
JavaScript
medium
1937 tried
113. push
JavaScript
medium
1861 tried
84. Array.prototype.sort()
JavaScript
medium
1688 tried
42. Hoisting V
JavaScript
medium
1520 tried
73. window name
JavaScript
medium
1242 tried
43. JSON.stringify()
JavaScript
medium
1232 tried
55. sparse array
JavaScript
medium
1168 tried
90. array keys
JavaScript
medium
997 tried
51. method
JavaScript
medium
993 tried
126. Object.keys()
JavaScript
medium
831 tried
85. String.raw()
JavaScript
medium
689 tried
121. Generator return()
JavaScript
medium
659 tried
78. RegExp
JavaScript
RegExp
medium
646 tried
119. return in Generator
JavaScript
medium
523 tried
125. try...catch...finally 2
JavaScript
medium
457 tried
128. setTimeout IV
JavaScript
medium
341 tried
131. return await
JavaScript
medium
309 tried
127. JSON.stringify() II
JavaScript
medium
259 tried