Array concatenation in C#

Question

1. How do I smartly initialize an Array with two (or more) other arrays in C#?

   double[] d1 = new double[5];
   double[] d2 = new double[3];
   double[] dTota         
   
   
           

Answer 1

var dTotal = d1.Concat(d2).ToArray();

You could probably make it 'better' by creating dTotal first, and then just copying both inputs with Array.Copy.