Best way to append newline to string except for last

Question

I was looking for the best/cleanest way to iterate over a list of strings and then create a single string of those separated by newlines (except for the last). Like so:

String 1 String 2 String 3 

I have written two loops here which has a newline at the end of the string (which I want to avoid) and another that does not. The one does not just doesn't seem "clean" to me. I would think there would be a simpler way to do it so that the logic is nearly as simple as in the example that has a new line to the end of the string.

List<string> errorMessages = new List<string>(); string messages = "";  //Adds newline to last string. Unwanted. foreach(string msg in errorMessages) {     messages += msg + "\n"; }  messages = ""; bool first = true;  //Avoids newline on last string foreach (string msg in errorMessages) {     if(first)     {         first = false;         messages = msg;     }     else     {         messages += "\n" + msg;     } } 

Maybe it is wishful thinking, but I would have thought this was a common enough occurrence to warrant a better way to accomplish my goal.

Answer 1

Use join

string.Join(System.Environment.NewLine, errorMessages);