Frontend Engineering
Mid-level
behavioral
What is your approach for debugging a challenging issue in your code? Can you give a specific example?
When faced with a persistent bug in a complex frontend app, I began by isolating the issue using breakpoints in the debugger. I reviewed the state of the application at various stages, identified a state mismanagement problem in React, and refactored the state handling logic to resolve the issue.
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LeetCode #102 - Binary Tree Level Order Traversal: Given a binary tree, return the level order traversal of its nodes' values. (i.e., from left to right, level by level). Example Input: root = [3,9,20,null,null,15,7] Example Output: [[3],[9,20],[15,7]] Constraints: The number of nodes in the tree is in the range [0, 2000]. -1000 <= Node.val <= 1000.
Software Engineering · Mid-level
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