Question 1

Implement Promise.all() from scratch

Accepted Answer

**Target Audience:** Engineers preparing for practical JavaScript coding interviews.
**Difficulty:** Medium

> **How to read this doc:** the "order is preserved regardless of completion order" claim — the single most commonly-missed detail in a naive first attempt — was verified directly with a slower promise listed BEFORE a faster one.

## 1. The problem, restated

Given an array of promises, return one promise that resolves with an array of ALL their results, in the SAME order as the input arr

Question 2

Implement Promise.allSettled()

Accepted Answer

**Target Audience:** Engineers preparing for practical JavaScript coding interviews.
**Difficulty:** Medium

> **How to read this doc:** the "never rejects overall" claim was verified directly with a real mix of one genuinely rejected and two genuinely fulfilled promises.

## 1. The problem, restated

Given an array of promises, return one promise that ALWAYS resolves (never rejects), with an array reporting each input's own real outcome as `{status: "fulfilled", value}` or `{status: "rejected",

JAVASCRIPT CODINGDECODED.

Medium

Implement Promise.all() from scratch

Implement Promise.allSettled()