Problem List|1586. Custom Promise.all Polyfill from Scratch (Part 12)Hard

1586. Custom Promise.all Polyfill from Scratch (Part 12)

Promises & AsyncTypeScript Types
### Problem #1586: Custom Promise.all Polyfill from Scratch (Part 12) **Domain:** `Frontend & Web` | **Topic Focus:** `Promises & Async, TypeScript Types` Implement an optimized, production-grade solution for **Custom Promise.all Polyfill from Scratch (Part 12)**. ### Requirements: 1. Your code must handle boundary inputs, edge cases, and maintain optimal time & space complexity. 2. In production, this logic scales to high-throughput environments. 3. Return the exact computed result.
Example 1:
Input: Sample Input #1586
Output: Output 1
Explanation: Demonstrates correct execution for Promises & Async in Frontend & Web.

Constraints:

  • Time Complexity: Optimal for standard production loads.
  • Space Complexity: O(1) auxiliary or O(N) linear storage.
  • Ensure memory safety, clean error propagation, and zero race conditions.
Integrity: 100%
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Input Arguments:
Test Case 1 for #1586
Expected Output:
Output 1