Synchronous versus asynchronous recursion

When it comes to implementing recursive algorithms, we have the choice between using synchronous or asynchronous approaches. Each approach has its own characteristics, benefits, and trade-offs. Let’s compare synchronous and asynchronous recursive code using an example of traversing a filesystem hierarchy.

Here is a synchronous recursive example:

void TraverseDirectory(string path)
{
    foreach (var file in Directory.GetFiles(path))
    {
        // Perform some operation on the file
        ProcessFile(file);
    }
    foreach (var subDirectory in Directory.GetDirectories(path))
    {
        // Recursively traverse subdirectories
        TraverseDirectory(subDirectory);...