C#–is null or == null that’s the question

While reviewing some code I noticed the following code construct:

	if(product is null)
	{
	}

view raw isnull.cs hosted with ❤ by GitHub

So far I’ve always written my null checks using the following syntax:

	if(product == null)
	{
	}

view raw ==null.cs hosted with ❤ by GitHub

I wasn’t aware that this was even possible. Turns out this was introduced in C# 7.

Why would you use the ‘is’ keyword instead of ‘==’? The ‘is’ keyword ignores any operator overloads so you don’t end up with unexpected behavior when you are using operator overloading.

Learned something today? Check!