JavaScript Fundamentals · Async JavaScript · Lesson 28 of 48
async/await
Concept
async/await
async and await are modern syntax that make asynchronous code read like regular, top-to-bottom code.
Under the hood it's still Promises — await simply pauses the function until the Promise settles, which is why await can only be used inside a function marked async.
- Explain the core idea behind async/await.
- Predict output before running a change.
- Test one realistic and one unusual input.
- Use the result to make the next decision.
- 1. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Self-check before continuing
Without looking at the example, describe what changes when you modify one input in async/await. Then reopen the editor and prove your explanation with a small test.
You are ready to continue when you can predict, test, and explain the result.
Your turn
Convert the Promise from the previous lesson into an async function using await.
Ask about this lesson or your next move. The guide explains the path without taking the work away from you.
Ready for the next lesson?
Mark this lesson complete when you have finished the exercise.
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