How can I use async/await in loops effectively?

How can I use async/await in loops effectively?

You can use async/await in loops by ensuring that the loop is asynchronous. For example, using a for...of loop with await.

Can you show me a code example?

Sure! Here's a simple example:

async function fetchData() {
    const urls = ['url1', 'url2', 'url3'];
    for (const url of urls) {
        const response = await fetch(url);
        const data = await response.json();
        console.log(data);
    }
}

What if I use a regular for loop instead?

If you use a regular for loop, you can still use await, but it will not wait for each iteration to complete before moving to the next. You might want to use Promise.all() for parallel execution.

Can you explain the difference between for...of and regular for loops in this context?

Certainly! A for...of loop waits for each promise to resolve before moving to the next iteration, while a regular for loop can initiate all promises at once, which may lead to unhandled rejections if not managed properly.