Null-coalescing operator in C#

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Null-coalescing operator

Null-coalescing operator (??) is convenient shortcut to return some other value when variable or expression is null.

using System;
class Hello 
{
    static void Main() 
    {
        string text1 = null;
        string text2 = "replacement text";
        string textToWrite = null;
        
        // long version
        if(text1 == null)
        {
            textToWrite = text2;
        }
        else 
        {
            textToWrite = text1;
        }
        Console.WriteLine(textToWrite);
        
        // shorter version
        textToWrite = text1==null ? text2 : text1;
        Console.WriteLine(textToWrite);
        
        // minimal version
        textToWrite = text1 ?? text2;
        Console.WriteLine(textToWrite);
    }
}

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