Services Work Learn About Contact
0/10
Lesson 10 of 10

Async Basics

JavaScript can run code after a delay or wait for data. setTimeout() runs code later. Promise and async/await handle operations that take time, like fetching data from a server.

JS
// Run after 2 seconds
setTimeout(() => {
  console.log("Delayed message");
}, 2000);

// Async function
async function getData() {
  let response = await fetch("/api/data");
  let data = await response.json();
  console.log(data);
}
🧠

Quick Quiz

Answer correctly to unlock the next lesson.

Support the mission

This learning platform is 100% free: no ads, no tracking, no paywalls. If it helped you learn something useful, you can support future lessons or donate to Doctors Without Borders, which provides emergency medical care in crisis zones worldwide.

🎉

You completed JavaScript!

You finished all 10 lessons and quizzes. You now know the basics of JavaScript.