JavaScript HashMaps & Sets

Sorting:

1. Group Anagrams

2. Longest Substring Without Repeating Characters

3. Jewels & Stones

4. Unique Morse Code Words

5. Happy Number

6. Uncommon Words from Two Sentences

7. Distribute Candies

8. Groups of Special-Equivalent Strings

9. Intersection of Two Arrays

10. Valid Sudoku

11. Isomorphic Strings

12. Word Pattern

13. Design HashMap

14. Design HashSet

Multiset:

1. First Unique Character in a String

2. Subdomain Visit Count

3. Find the Difference

4. Sort Characters by Frequency

5. Most Common Word

6. Set Mismatch

7. Number of Atoms

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