What are the best practices for using async in JavaScript?

What are the best practices for using async in JavaScript?

Some best practices include using async/await for cleaner code, handling errors with try/catch, and avoiding blocking code.

Can you give me an example of using async/await?

Sure! Here's a simple 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 fetching data:', error);
    }
}

What should I avoid when using async functions?

Avoid using async functions inside loops without proper handling, as it can lead to unintentional behavior and performance issues.

How do I handle multiple async calls?

You can use Promise.all() to handle multiple async calls concurrently. Here's an example:

async function fetchMultiple() {
    const [data1, data2] = await Promise.all([
        fetch('https://api.example.com/data1'),
        fetch('https://api.example.com/data2')
    ]);
    // Process data1 and data2
}