Counting how many times a certain char appears in a string before any other char appears

Question

I have many strings. Each string is prepended with at least 1 $. What is the best way to loop through the chars of each string to count how many $'s there are per string.

eg:

"$hello" - 1 "$$hello" - 2 "$$h$ello" - 2 

Answer 1

You could use the Count method

var count = mystring.Count(x => x == '$') 

Answer 2

int count = myString.TakeWhile(c => c == '$').Count(); 

And without LINQ

int count = 0; while(count < myString.Length && myString[count] == '$') count++;