What are the performance differences between asynchronous and synchronous programming?

What are the performance differences between asynchronous and synchronous programming?

Asynchronous programming allows tasks to run concurrently, improving performance, especially in I/O-bound operations. Synchronous programming, on the other hand, executes tasks sequentially, which can lead to delays if one task takes a long time.

Can you give me an example of when to use async over sync?

Sure! Use asynchronous programming when dealing with tasks like web requests or file I/O, where waiting for a response can slow down your application. For example, fetching data from an API is a great candidate for async.

What are the downsides of using asynchronous programming?

Some downsides include increased complexity in code, potential for callback hell, and difficulties in debugging. It can also lead to race conditions if not managed properly.

How does async/await improve the readability of async code?

Async/await allows you to write asynchronous code that looks synchronous, making it easier to read and maintain. It helps avoid deeply nested callbacks.