Event Logger (DOM + Batching + Promise Queueing + Abort)

Problem Overview

Implement a multi-part event logger in JavaScript/browser environment. The problem has four progressive parts: Part 1 – DOM Querying & Click Handlers: Use DOM querying to identify clickable elements (e.g., colored squares on the page). Attach click event handlers to each element and log relevant event metadata such as the…

• 3 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
• The rest of the problem statement — full requirements, constraints, and edge cases
• Approach and trade-offs — what passing candidates did, and the mistakes that sink people