// C# Extension Method
// Doc: https://csharp-extension.com/en/method/1002080/string-ifempty
// @nuget: Z.ExtensionMethods
using System;
public class Program
{
public static void Main()
string [] values = {"EntityFramework", "", "SQL", "Java"};
foreach(var str in values)
// C# Extension Method: String - IfEmpty
string newStr = str.IfEmpty("Empty String...");
Console.WriteLine(newStr);
}