C# Language Highlights: Null Coalescing Operator

The null coalescing operator in C# is a really handy feature. Learn how it works in this short video from James ( / jamesmontemagno ) and Maira ( / mairacw )
🏫 Free self-guided learning for C# on Microsoft Learn: aka.ms/learn/csharp
?? and ??= operators (C# reference)
docs.microsoft.com/dotnet/csh...
First steps with C#
docs.microsoft.com/learn/path...
Get your questions answered on the Microsoft Q&A for .NET - aka.ms/dotnet-qa​
Learn .NET with free self-guided learning from Microsoft Learn: aka.ms/learndotnet
#DotNet #csharp

[@EncryptedDream]

Great video

[@BahawalTV]

Nice!

[@Lonchanick]

IN the first case I would say the question is "if the condition is true" but not "if it is null" , It could be confusing because we are not here evaluating if it is null but just evaluating a condition.

[@riturajjana]

What if I want to print anything else other then 5. How can I do it with null coealsing ?

[@larknoone565]

Does C# allows the creation of new operators unlike C++ ?

[@pereirafabiosantos]

See this in the documentation: docs.microsoft.com/pt-br/dotnet/csharp/language-reference/operators/operator-overloading

[@ethancox6967]

No, like C++, C# does not allow the creation of new operators. See the official Microsoft documentation (which I have linked below) for a list of the overloadable operators. References: ========= - Can You Create New Operators in C#?: stackoverflow.com/questions/1040114/is-it-possible-to-create-a-new-operator-in-c - Microsoft C# Documentation: Overloadable Operators: docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/operator-overloading#overloadable-operators

[@JoeBonez]

You cannot create completely new operators, however you can override existing operators. Like, you can define “operator ==“ (which requires that you also override “operator !=“), or “operator *”. Implementing “IEquatable” implies (but does not require) “==“ and “!=“, while implementing “IComparable” implies (but again, does not require) “>”, “=“ and “

[@joshemm4991]

how about a = b ??= -1;

[@mangkepweng3741]

??= not supported in c#7.3

[@vaishnaviwarang1583]

what is an alternative to this? Mind helping me? I'm kind of stuck. I have a code where I need to assign a value of string to model object property . my code : @model HomeDetailsViewModel @{ ViewBag.Title = "Employee Details"; var photoPath = "/images/" + (Model.Employee.PhotoPath ?? "noimage.jpg"); // THIS LINE. }

[@chefbennyj]

Actually, thank goodness for conditional operators, coalescence, and nullable reference types. If it didn't exist, your code would be if if if if if if if if switch if if 😂

[@jnicoulakos]

IF IF IF IF IF IF IF WOW! I hear you there! ;) I try to avoid the nested crap! :)

[@chefbennyj]

@@jnicoulakos I suppose using LINQ does handle the "if soup", using "select", first or default, but even "exists" has to live in an "if statement" 😂🤣😂🤣😂