What is async and await in C#?

What is async and await in C#?

Async and await are keywords in C# that help you write asynchronous code more easily. They allow you to perform tasks without blocking the main thread.

Can you give me an example of how to use them?

Sure! Here's a simple example:

public async Task<string> GetDataAsync() {
    await Task.Delay(1000); // Simulates a delay
    return "Data retrieved!";
}

What happens if I don't use await?

If you don't use await, the method will return a Task immediately, and the code after the Task will execute without waiting for the Task to complete.

Are there any performance benefits to using async and await?

Yes, using async and await can improve the responsiveness of your application, especially in UI applications, by keeping the UI thread free while waiting for I/O operations.