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$ curl repovive.com/roadmaps/javascript/asynchronous-javascript/promise-all

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Promise.all - Asynchronous JavaScript | JavaScript | Repovive

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JavaScript22 sections · 783 units18h total

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Promise.all

Run promises in parallel

Promise.all() runs multiple promises in parallel and waits for all to complete. It returns an array of results.

Promise.all([
  fetchUser(1),
  fetchUser(2),
  fetchUser(3)
]).then(users => {
  console.log(users); // [user1, user2, user3]
});

If any promise rejects, Promise.all rejects immediately.