Minimum Number of Buses to Destination | JavaScript Coding Interview Question Explained Step-by-Step

In this video, we solve the popular LeetCode “Bus Routes” problem — also known as Minimum Number of Buses to Destination — using JavaScript and a clear Breadth-First Search (BFS) approach. 🚌💡

We’ll walk through:
✅ Building the stop-to-bus mapping efficiently
✅ Using BFS to find the shortest path to the target stop
✅ Handling edge cases like unreachable destinations
✅ Full dry run and code explanation
This problem is perfect for those preparing for JavaScript interviews, DSA practice, and LeetCode challenges.
Watch till the end to understand how BFS can solve real-world graph problems in JavaScript.

📘 Topics Covered:

Graph traversal using BFS

Map and Set usage in JavaScript

Optimizing time complexity

Real coding interview example

💻 Code Language: JavaScript
🎯 Difficulty: Medium
📚 Platform: LeetCode

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