What is the purpose of async and await in C#?

What is the purpose of async and await in C#?

Async and await are used in C# to simplify asynchronous programming, allowing for non-blocking code execution.

Can you give me an example of how to use async and await?

Sure! Here's a simple example:

public async Task<string> GetDataAsync()
{
    using (HttpClient client = new HttpClient())
    {
        var response = await client.GetStringAsync("https://api.example.com/data");
        return response;
    }
}

What happens if I don't use await with an async method?

If you don't use await, the method will run asynchronously, but you won't be able to access the result or handle exceptions properly.

Are there any performance benefits to using async and await?

Yes, using async and await can improve performance by freeing up threads to handle other tasks while waiting for I/O operations to complete.