[C#/COMMON] is 연산자 : 상수 패턴(Constant Pattern) 사용하기

▶ 예제

using System;
using System.Drawing;

object[] sourceArray = { 1, null, 10, new Point(5, 10), new Rectangle(10, 10, 200, 200), string.Empty };

foreach(object source in sourceArray)
{
    if(source is null)
    {
        Console.WriteLine("NULL");
    }
    else if(source is 10)
    {
        Console.WriteLine("10");
    }
    else if(source is "")
    {
        Console.WriteLine("EMPTY STRING");
    }
    else
    {
        Console.WriteLine(source.ToString());
    }
}