Promise Retry with Backoff

💡 How to Think About This Problem

When implementing Promise Retry with Backoff in an interview, the interviewer evaluates your core JavaScript capabilities, syntax familiarity, and edge-case handling.

1. Deconstructing the Requirements

To construct a robust solution:

• Pre-conditions: Handle empty collections or incorrect parameter types.
• Core Logic: Target the required functional transformation cleanly.

2. Step-by-Step Breakdown

• Step 1: Input Validation - Check constraints and boundary values early on.
• Step 2: Algorithm Implementation - If execution fails and retries > 0, sleep for delay milliseconds, then call recursively with retries - 1 and delay * 2.
• Step 3: Complexity Analysis - We prioritize structural sharing and minimal allocations.

💬 Thinking Aloud (Interview Walkthrough)

Here is how you should naturally talk thro