What are the best practices for writing asynchronous code?

What are the best practices for writing asynchronous code?

When writing asynchronous code, it's important to use clear and consistent patterns. Here are some best practices: 1. Use Promises or async/await for better readability. 2. Handle errors properly with try/catch blocks. 3. Avoid callback hell by keeping your code flat. 4. Use tools like linters to enforce coding standards.

Can you explain why using async/await is better than callbacks?

Absolutely! Async/await makes your code look synchronous, which is easier to read and maintain. It also helps in handling errors more gracefully compared to callbacks, where you might forget to handle errors in every callback.

What are some common pitfalls to avoid in asynchronous programming?

Some common pitfalls include: 1. Forgetting to await a Promise, leading to unexpected behavior. 2. Not handling errors properly, which can cause unhandled promise rejections. 3. Creating too many concurrent requests, which can overwhelm your server.

How can I improve the performance of my asynchronous code?

To improve performance, consider using techniques like throttling or debouncing for event listeners, batching requests, and using web workers for heavy computations. Also, ensure that you're not blocking the event loop with synchronous code.