How do I implement async functions in JavaScript?

How do I implement async functions in JavaScript?

To implement async functions in JavaScript, you can use the async keyword before a function declaration. This allows you to use await inside the function.

Can you give me an example of an async function?

Sure! Here's a simple example:

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

What happens if I don't use await inside an async function?

If you don't use await, the function will return a promise immediately, and the code will continue executing without waiting for the asynchronous operation to complete.

Are there any best practices for using async functions?

Yes! Some best practices include handling errors with try/catch, avoiding blocking code, and using Promise.all for concurrent operations.