CodeAgeBy Sitezack
Modern JavaScript for ProsES6+ and async0 XP
Chapter progress0/6

Lesson 4 of 6

Promises

A Promise represents a value arriving later (API response, timer…). .then(callback) chains the processing once it resolves.

fetchScore() is provided and simulates an API call: it returns a Promise — the handling code is identical to a real fetch.

fetchScore().then((score) => {
  console.log(score);
});

🎯 Exercise

Call fetchScore() (provided), then inside the .then, write the score multiplied by 10 into #out (expected result: 70).

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