What are some real-world examples of async JavaScript?

What are some real-world examples of async JavaScript?

Async JavaScript is widely used in web development. For instance, fetching data from APIs using fetch() is a common example.

Can you give me a specific example of using fetch?

Sure! Here's a simple example:

fetch('https://api.example.com/data')
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

What about async/await? How does that work?

Async/await simplifies working with promises. Here's how you can rewrite the fetch example:

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:', error);
  }
}
fetchData();

Are there any other use cases for async JavaScript?

Yes! Async JavaScript is also used for handling user input, loading images, and performing background tasks without blocking the UI.