What is the difference between asynchronous and synchronous code?

What is the difference between asynchronous and synchronous code?

Synchronous code executes sequentially, meaning each operation must complete before the next one starts. Asynchronous code, on the other hand, allows multiple operations to run concurrently, improving efficiency.

Can you give me an example of each?

Sure! In synchronous code, if you have a function that fetches data, it will wait for the data to be retrieved before moving on. In asynchronous code, it can start fetching data and continue executing other code while waiting for the data to return.

What are the benefits of using asynchronous code?

Asynchronous code can improve performance, especially in I/O operations, by not blocking the execution thread. This leads to better resource utilization and a more responsive application.

Are there any downsides to using asynchronous code?

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