Are you checking for null correctly in C#? #Shorts

Let's take a look at the evoluation of null checking in C# over the years.

[josef]

I'm so proud that as a beginner I'm doing it correctly 😄Thanks to the wonderful C# community

[ristopaasivirta]

Galaxybrain approach:
if ((_player as Player) is Player)

[AR-fhuh]

That moment when code languages become more human readable.
If <something> is not null almost makes too much sense.

[antonmartyniuk]

I like that .NET 6 has Nullable property enabled for all projects by default

[Soraphis]

0:45 "which is the same as the previous one, but more confusing"
:D thank you for this gem

Everyone using the Unity game engine should stick with "== null", since they overloaded the == operator and they might return null, even if the C# object itself is not null yet.
so using "is null" would skip this check leading to undesired behavior.

[MarkOGrady]

Great video. I haven't kept up with the evolution in the language for a while and this video was nice and concise without any fluff.

[ericfleet]

As someone who has programmed forever, I hadn't realized this had changed.

[AndreaTani]

C# finally doing something SQL had pretty much nailed since the begginning 😆
EDIT: I dont mean to bash (pun intended) any language, I work daily with both technologies and I love tem both

[DrewTNaylor]

Visual Basic be like, "You couldn't live with your own failure, where did that bring you? Back to me."

[arithex]

Thank you so much for these shorts.. can't quite bring myself to watch a longer video, on how to check for null. :)

[monawoka]

This is why I love C++ pointers. Since a null pointer is 0 you can just check the variable itself as the condition

[jiipoud]

Damn the overloading just messed it up

[LucasSilva-rsyl]

Love these shorts, please keep doing more of this Nick !

[cookiebot]

Could you please do a video on how to work with <Nullable>enable</Nullable>

I understand what it is doing and why it is doing it but best practices how to DEAL with it is a mystery for me. When should I initialize them from the ctor, when should I give them a default value, and when should I do a null check in a method?

[abedfattal]

Coming from Kotlin as a primary language, now I'm jealous to see the pragmatic way of checking not null in C# using the is not null, I hate to write != null, I know we can write our own extension for this, but it's nice to have in the standard library.

Thanks for sharing 😇

[fallingintime]

I have used if (entity is User) - handy if you are dealing with interfaces with multiple implementations and readable

[loryteck]

Shorts King c#👌please put a link to a full video and I am all yours

[weluvmusicz]

Yeah and in JIT the HasValue() function is called for every approach! This inclued the == variant.

[a-minus-b-equals-a]

Won't the usage of "is null" be a cause of bugs in certain situations? The operator might've been overriden to support some behavior. Case at hand: Unity. AFAIK, I heard that null-checking with "is null" can lead to unexpected behavior in there.

As long as that's the case, I disagree with implying that null-checking with "is null" is strictly better, as there might be cases where it doesn't work as expected.

[smokinjoeee]

Soon c# will evolve to fully typed english sentences