What are the differences between async queues and promises?

What are the differences between async queues and promises?

Async queues and promises are both used for handling asynchronous operations, but they serve different purposes. Promises represent a single value that may be available now, or in the future, or never. Async queues, on the other hand, manage a sequence of tasks that need to be executed in order.

Can you give me an example of when to use each?

Sure! Use promises when you need to handle a single asynchronous operation, like fetching data from an API. Use async queues when you have multiple tasks that need to be executed in a specific order, like processing a series of files.

What happens if a promise is rejected?

If a promise is rejected, it triggers the 'catch' method, allowing you to handle the error gracefully. You can also use 'try-catch' in async functions to manage errors.

Are async queues more efficient than promises?

Not necessarily. Efficiency depends on the use case. Async queues can be more efficient for managing multiple tasks, while promises are simpler for single operations.