What are the differences between synchronous and asynchronous code?

What are the differences between synchronous and asynchronous code?

Synchronous code executes sequentially, meaning each operation must complete before the next one starts. Asynchronous code, on the other hand, allows operations to run concurrently, enabling other tasks to proceed while waiting for a response.

Can you give me an example of each?

Sure! In synchronous code, if you have a function that fetches data from an API, the next line of code won't run until the data is fully retrieved. In asynchronous code, you can initiate the data fetch and continue executing other code while waiting for the data to arrive.

What are the benefits of using asynchronous code?

Asynchronous code can improve performance and responsiveness, especially in applications that handle I/O operations, like web servers, by allowing them to process multiple requests simultaneously.

Are there any downsides to using async code?

Yes, async code can be more complex to write and debug. It may also lead to issues like callback hell if not managed properly.