What are the limitations of using async/await in JavaScript?

What are the limitations of using async/await in JavaScript?

While async/await simplifies asynchronous code, it has some limitations. For instance, it can lead to unhandled promise rejections if not properly managed. Additionally, it doesn't allow for concurrent execution of multiple asynchronous operations unless you use Promise.all().

Can you explain unhandled promise rejections?

Sure! An unhandled promise rejection occurs when a promise is rejected, and there is no .catch() method or try/catch block to handle the error. This can lead to unexpected behavior in your application.

What about performance issues with async/await?

Async/await can introduce performance overhead due to the additional layers of abstraction. If not used judiciously, it may lead to slower execution compared to traditional promise chaining, especially in scenarios where many asynchronous tasks can run concurrently.

Are there any alternatives to async/await?

Yes, alternatives include using plain promises with .then() and .catch() methods, or even using callback functions. Each approach has its own use cases and trade-offs.