Demystifying Asynchronous Code with Async/Await

 For years, asynchronous JavaScript relied heavily on callbacks and promises (.then()). The introduction of async/await made non-blocking code far easier to read and write.

From Promises to Async/Await

Instead of chaining .then() calls, the await keyword pauses execution until the promise resolves, yielding clean, synchronous-looking code.

JavaScript

async function fetchUserData(userId) {
    try {
        const response = await fetch(`https://api.example.com/users/${userId}`);
        if (!response.ok) {
            throw new Error('User not found');
        }
        const data = await response.json();
        console.log('User data:', data);
    } catch (error) {
        console.error('Error:', error.message);
    }
}