· Chuck Conway · Programming · 1 min read
In C# the question mark has 5 meanings as of C# 8.
In C# the question mark has 5 meanings as of C# 8.
(true ? "true": "false")
2. Null conditional operator
items?.Count()
3. Nullable types (this should be rebranded as nullable value types)
int?
4. Null-coalescing operator
isnull ?? string.Empty
5. Nullable reference types
string?
The [FromServices] attribute allows method level dependency injection in Asp.Net Core controllers.
Microsoft is adding a new feature to C# 8 called Nullable Reference Types. Which at first, is confusing because all reference types are nullable… so how this different? Going forward, if the feature is enabled, references types are non-nullable, unless you explicitly notate them as nullable.
There’s a heated debate around single statements and whether they should have curly braces or not.
Have you had to compare two collections and execute some logic based on whether the item is in the source collection, in the comparing collection or in both? Yeah, me too, I needed to merge data from the UI and the database. I couldn’t find a good solution, so, I wrote a collection comparer.