Promise.all()

A method returning a Promise that fulfills when every input fulfills or rejects when one rejects.

What does Promise.all() do in JavaScript?

Promise.all() — A method returning a Promise that fulfills when every input fulfills or rejects when one rejects.

const results = await Promise.all([loadUser(), loadOrders()]);

Level: Freelancer · More JavaScript terms at this level

Updated September 27, 2026