✅ Number of Matching Subsequences | JavaScript Efficient Solution | LeetCode Explained

In this video, we solve LeetCode 792 – Number of Matching Subsequences using JavaScript.
Learn how to efficiently count how many words from an array are subsequences of a given string using waiting map / bucket method.

✨ Topics Covered:

Subsequence concept

Waiting map / bucket approach

Efficient processing without brute force

Step-by-step example walkthrough

📘 Example Input: s = "abcde", words = ["a","bb","acd","ace"] → Output: 3
📗 Example Input: s = "dsahjpjauf", words = ["ahjpjau","ja","ahbwzgqnuk","tnmlanowax"] → Output: 2

Perfect for coding interview prep, DSA practice, and JavaScript learners.


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