JavaScript Async
Implement Promise.all
mediumJS SpecificJS / TS5 tests
Problem Statement
Implement a custom `promiseAll` function that accepts an array of promises (or values) and returns a single Promise that resolves to an array of results, maintaining original order. If any promise rejects, `promiseAll` rejects with that error immediately.
Examples
Example:
const p1 = Promise.resolve(42);
const p2 = new Promise((resolve) => setTimeout(() => resolve('hello'), 100));
promiseAll([p1, p2]).then(console.log); // [42, 'hello']JavaScript & TypeScript starter code included
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