Wrapping StopWatch timing with a delegate or lambda?

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How about extending the Stopwatch class?

public static class StopwatchExtensions
{
    public static long Time(this Stopwatch sw, Action action, int iterations)
    {
        sw.Reset();
        sw.Start(); 
        for (int i = 0; i < iterations; i++)
        {
            action();
        }
        sw.Stop();

        return sw.ElapsedMilliseconds;
    }
}

Then call it like this:

var s = new Stopwatch();
Console.WriteLine(s.Time(() => DoStuff(), 1000));

You could add another overload which omits the “iterations” parameter and calls this version with some default value (like 1000).

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