Understanding JavaScript Async/Await

April 5, 2024 (1y ago)

Asynchronous programming can be complex, especially when handling tasks like API calls, file uploads, or database queries. JavaScript’s async and await keywords make it easier to write asynchronous code that’s clean and readable.

What is async/await?

Introduced in ES2017, async/await is syntactic sugar built on top of Promises, allowing developers to write asynchronous code in a synchronous-looking way. This means instead of chaining .then() callbacks, you can write asynchronous code in a more linear and readable manner.

// Simple example of async/await
async function fetchData() {
  try {
    const response = await fetch('https://api.example.com/data');
    const data = await response.json();
    console.log(data);
  } catch (error) {
    console.error('Error fetching data:', error);
  }
}
fetchData();