Waiting for the first successful promise

JavaScript Easy promises

Task «Waiting for the first successful promise»

Write a function `firstResolved(promises)` that takes an array of promises and returns a new promise that resolves with the value of the first successfully resolved promise from the array. If all promises are rejected, the returned promise should be rejected with the message "All promises rejected". Use only standard promise methods, without async/await.

Input Format

A string with an array of promises in JSON format, where each promise is represented as [resolve, value] or [reject, error]. For example: [[true, 10], [false, 'Error'], [true, 20]].

Output Format

The value of the first successfully resolved promise or the string 'All promises rejected'.

Examples

Example 1

INPUT

[[true, 10], [true, 20], [false, 'Error']]

OUTPUT

10

Example 2

INPUT

[[false, 'Error1'], [true, 'Success'], [false, 'Error2']]

OUTPUT

Success

Example 3

INPUT

[[false, 'Error1'], [false, 'Error2']]

OUTPUT

All promises rejected

main.js