print console characters faster

Question

I have a function that accepts a number which will convert it to a 5x7 graphic representation of digits like this:

Console.WriteLine(\" ███ \");  // byte: 0000          


        

Answer 1

I Minimized IO. Here is a version below that makes console calls only at the end.

        var stringBuilder = new StringBuilder();
        bitCounter = 0;
        foreach (bool bit in bitData)
        {                
            if (bit)
                stringBuilder.Append("█");
            else
                stringBuilder.Append(" ");
            bitCounter++;
            if (bitCounter > 7)
            {
                bitCounter = 0;
                Console.WriteLine(stringBuilder.ToString());
                stringBuilder.Clear();
            }
        }