What is async-await in JavaScript?

Can you explain what async-await is in JavaScript?

Sure! Async-await is a syntax in JavaScript that allows you to work with asynchronous code more easily. It makes your code look synchronous, which can be easier to read and maintain.

How does it differ from using promises?

Async-await is built on top of promises. While promises require chaining with .then(), async-await allows you to write asynchronous code in a more linear fashion using the await keyword.

Can you give me an example of how to use async-await?

Of course! Here's a simple example:

async function fetchData() {
    const response = await fetch('https://api.example.com/data');
    const data = await response.json();
    return data;
}

This function fetches data from an API and waits for the response before proceeding.

What happens if an error occurs in an async function?

If an error occurs, you can handle it using a try-catch block. For example:

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