What is the difference between synchronous and asynchronous programming?

What is the difference between synchronous and asynchronous programming?

Blog Article

Synchronous programming executes code sequentially, meaning each task must complete before the next one starts. This can lead to blocking operations, where the program waits for a task (e.g., a database query) to finish before moving on.

Asynchronous programming, on the other hand, allows multiple tasks to run concurrently. It uses callbacks, promises, or async/await to handle tasks that take time to complete, such as API calls or file I/O. This improves performance and responsiveness.

In full-stack development, asynchronous programming is often used in backend frameworks like Django (with async views) and Flask (with asyncio). It is also essential in frontend development, where tasks like fetching data from an API should not block the UI.