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DSA Coding Practice
Practice JavaScript coding problems to improve problem solving.
1. Reverse a String —
Easy
2. Find Largest Number —
Easy
3. Check Palindrome —
Easy
4. Two Sum —
Medium
5. Fibonacci —
Easy
6. Remove Duplicates —
Medium
7. Count Vowels —
Easy
8. Factorial —
Easy
9. Merge Two Arrays —
Easy
10. Find Missing Number —
Medium
1. Reverse a String —
Easy
2. Find Largest Number —
Easy
3. Find Smallest Number —
Easy
4. Sum of Array —
Easy
5. Count Even Numbers —
Easy
6. Check Palindrome —
Easy
7. Remove Duplicates —
Easy
8. Count Vowels —
Easy
9. Factorial —
Easy
10. Fibonacci —
Easy
11. Reverse Array —
Easy
12. Find Average —
Easy
13. Capitalize First Letter —
Easy
14. Count Words —
Easy
15. Find Max in Object Array —
Medium
16. Two Sum —
Medium
17. Find Missing Number —
Medium
18. Flatten Array —
Medium
19. Check Anagram —
Medium
20. Find Second Largest —
Medium
21. Find Duplicate Numbers —
Easy
22. Sort Numbers —
Easy
23. Check Prime —
Easy
24. Find Index —
Easy
25. Merge Arrays —
Easy
26. Chunk Array —
Medium
27. Count Characters —
Easy
28. Find Longest Word —
Easy
29. Sum of Digits —
Easy
30. Random Number —
Easy
31. Remove Falsy Values —
Easy
32. Rotate Array —
Medium
33. Find Intersection —
Easy
34. Check Even —
Easy
35. Convert String to Array —
Easy
36. Find Max Difference —
Medium
37. Reverse Number —
Easy
38. Count Odd Numbers —
Easy
39. Remove Element —
Easy
40. Find Median —
Medium
41. Square Numbers —
Easy
42. Filter Positive —
Easy
43. Find Unique Characters —
Medium
44. Find First Non-Repeating —
Medium
45. Convert to Uppercase —
Easy
46. Check Substring —
Easy
47. Find Max in Matrix —
Medium
48. Shuffle Array —
Medium
49. Count Occurrences —
Easy
50. Flatten One Level —
Easy
51. Binary Search —
Medium
52. Factorial —
Easy
53. Fibonacci —
Easy
54. Two Sum —
Easy
55. Palindrome Number —
Easy
56. Missing Number —
Easy
57. Move Zeros —
Easy
58. Kadane Algorithm —
Medium
59. Remove Duplicates Sorted Array —
Easy
60. Climb Stairs —
Medium
61. Find Second Largest —
Easy
62. Check Power of Two —
Easy
63. Sum of Array —
Easy
64. Count Vowels —
Easy
65. Check Sorted Array —
Easy
66. Linear Search —
Easy
67. Reverse Words —
Easy
68. Count Words —
Easy
69. GCD —
Medium
70. LCM —
Medium
71. Flatten Deep Array —
Medium
72. Group By Property —
Medium
73. Debounce Function —
Medium
74. Throttle Function —
Medium
75. Deep Clone Object —
Medium