Optional
FParsec.CSharp
| Optional | FParsec.CSharp | |
|---|---|---|
| 6 | 1 | |
| 876 | 18 | |
| - | - | |
| 0.0 | 0.0 | |
| 8 months ago | about 1 year ago | |
| C# | C# | |
| MIT License | MIT License |
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Optional
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Nullable vs Option
Since then C# introduced nullable which takes away some of the needs for a Option type. So what is your opionion? Do libraries like Optional still have a place when nullable is enabled?
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It seems like I'm forced to make this choice at least once a day
Optional is my go-to for c# (you could also use the F# Option of course but pulling fsharp.core into a C# project tends to raise eyebrows in my experience)
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Common C practice to avoid in C++
This library provides similar functionality to F#'s Option type. I can't vouch for it, but it's there.
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Why GoLang supports null references if they are billion dollar mistake?
Not really. C# doesn't have monads but you can easily add something like https://github.com/nlkl/Optional which is great for a team familiar with option types and IMO will lead to a more productive team with a more concise code base.
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How do you handle EF Core null return values in your projects?
You can use Optional
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How to get rid of NullPointerException
The option type is a different way to represent an optional value. This type asks if a value exists and, if so, accesses the value. When trying to access the value which doesn’t exist, it raises an exception. This solves the problem of NullPointerException raised in code areas away from the bug. In Java there is the Optional class. In C# (until C# 7 ) there is the Nullable type which is only for value types but you can create your own or use a library.
FParsec.CSharp
What are some alternatives?
language-ext - C# functional language extensions - a base class library for functional programming
ParserObjects - C# library for parser combinators
JFlepp.Maybe - A Maybe type for C#, aimed as an idiomatic port of the option type in F# to C#
Curryfy - Provides strongly typed extensions methods for C# delegates to take advantages of functional programming techniques, like currying and partial application.
MoreLINQ - Extensions to LINQ to Objects
Optuple - .NET Standard Library for giving (bool, T) Option-like semantics
NullGuard - Adds null argument checks to an assembly
kotlin-result - A multiplatform Result monad for modelling success or failure operations.
vigil - Vigil, the eternal morally vigilant programming language
Union
csharplang - The official repo for the design of the C# programming language
goderive - Derives and generates mundane golang functions that you do not want to maintain yourself