What method in the String class returns only the first N characters?

Question

I\'d like to write an extension method to the String class so that if the input string to is longer than the provided length N, only the first

Answer 1

if we are talking about validations also why we have not checked for null string entries. Any specific reasons?

I think below way help since IsNullOrEmpty is a system defined method and ternary operators have cyclomatic complexity = 1 while if() {} else {} has value 2.

    public static string Truncate(string input, int truncLength)
    {
        return (!String.IsNullOrEmpty(input) && input.Length >= truncLength)
                   ? input.Substring(0, truncLength)
                   : input;
    }