I love Tuples
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GKP1992 wrote:
Create a nested tuple and now you don't know which element you are referring to when you say Item2
Tuple "items" can be named, so:
var name = GetMyName();where:(string firstName, string lastName) GetMyName()
{
return ("Marc", "Clifton");
}I can use
name.firstNameandname.lastNameMost of the time. ;)Latest Articles:
A Lightweight Thread Safe In-Memory Keyed Generic Cache Collection Service A Dynamic Where Implementation for Entity FrameworkBut is that C#?
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But is that C#?
Yes
Check out my IoT graphics library here: https://honeythecodewitch.com/gfx And my IoT UI/User Experience library here: https://honeythecodewitch.com/uix
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IMHO, in recent years, the best feature MS has added to the C# is Tuple. It helps make code cleaner and quicker to write. It can be compared to Generic lists.
Behzad
I don't use them much. I usually prefer to create a class. It kinda depends on how important the thing is.
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Yes, tuples are great, especially as a replacement for
out string fooand I use them primarily for returning multiple things for rather low level methods whenoutor a C# class/struct is just overkill. The fact that the tuple parameters can be named was a huge advancement, rather than having to useItem1,Item2, etc. That said, I use them judiciously and always ask myself, if I'm using a tuple here, is that the right approach or am I compensating for a possibly bad "design." For example (this from code I have in a library):public (HttpStatusCode status, string content) Get(string url, Dictionary headers = null) { var client = RestClientFactory(); var request = new RestRequest(url, Method.Get); headers?.ForEach(kvp => request.AddHeader(kvp.Key, kvp.Value)); RestResponse response = client.Execute(request); return (response.StatusCode, response.Content); }Why am I parsing out the status code and content instead of just returning the
responseobject? One answer is that returningresponsemay probably require ausing RestSharpand even a reference to the RestSharp package in the caller project. OK, maybe that's a defensible argument, maybe not. After using this library of mine (REST is just one small part of this library) I'm not that thrilled with my initial wrapper implementation. But because I started this "pattern", it continues, like:public (T item, HttpStatusCode status, string content) Get(string url, Dictionary headers = null) where T : new() { var client = RestClientFactory(); var request = new RestRequest(url, Method.Get); headers?.ForEach(kvp => request.AddHeader(kvp.Key, kvp.Value)); RestResponse response = client.Execute(request); T ret = TryDeserialize(response); return (ret, response.StatusCode, response.Content); }And this illustrates mashing together various potentially bad implementation/designs. The tuple now returns three things, and the
TryDeserializecatches exceptions silently, returning a null forT item, and what if I want the actual deserialization exception? And now that I look at that code again after a couple years, what's with thatAddHeaderloop when there's a perfectly:-D I think there are very few people smarter than you.
The difficult we do right away... ...the impossible takes slightly longer.
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IMHO, in recent years, the best feature MS has added to the C# is Tuple. It helps make code cleaner and quicker to write. It can be compared to Generic lists.
Behzad
I love them because sometimes it is convenient to return more than one value from a method, and the use case doesn't justify the overhead of creating and populating a POCO.
There are no solutions, only trade-offs.
- Thomas SowellA day can really slip by when you're deliberately avoiding what you're supposed to do.
- Calvin (Bill Watterson, Calvin & Hobbes) -
IMHO, in recent years, the best feature MS has added to the C# is Tuple. It helps make code cleaner and quicker to write. It can be compared to Generic lists.
Behzad
Tuples and anonymous classes have drastically reduced the number of single-use classes in my code :D
Best, Sander Azure DevOps Succinctly (free eBook) Azure Serverless Succinctly (free eBook) Migrating Apps to the Cloud with Azure arrgh.js - Bringing LINQ to JavaScript
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GKP1992 wrote:
Create a nested tuple and now you don't know which element you are referring to when you say Item2
Tuple "items" can be named, so:
var name = GetMyName();where:(string firstName, string lastName) GetMyName()
{
return ("Marc", "Clifton");
}I can use
name.firstNameandname.lastNameMost of the time. ;)Latest Articles:
A Lightweight Thread Safe In-Memory Keyed Generic Cache Collection Service A Dynamic Where Implementation for Entity FrameworkThe slightly weird thing that disturbs me about that is that firstName and lastName behave/look a lot like members of a class/struct yet don't have Pascal Case naming.
name.firstNamevs.name.FirstNameIt reminds me of Javascript, and well you know what that can inflict on the soul.Regards, Rob Philpott.
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GKP1992 wrote:
Create a nested tuple and now you don't know which element you are referring to when you say Item2
Tuple "items" can be named, so:
var name = GetMyName();where:(string firstName, string lastName) GetMyName()
{
return ("Marc", "Clifton");
}I can use
name.firstNameandname.lastNameMost of the time. ;)Latest Articles:
A Lightweight Thread Safe In-Memory Keyed Generic Cache Collection Service A Dynamic Where Implementation for Entity Framework -
IMHO, in recent years, the best feature MS has added to the C# is Tuple. It helps make code cleaner and quicker to write. It can be compared to Generic lists.
Behzad
I don't use C# much these days but totally agree. And, digging the positivity man. :cool:
Jeremy Falcon
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IMHO, in recent years, the best feature MS has added to the C# is Tuple. It helps make code cleaner and quicker to write. It can be compared to Generic lists.
Behzad
Like (almost) everything in C#, they have their uses. Loving them? No!
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows. -- 6079 Smith W.
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Tuples and anonymous classes have drastically reduced the number of single-use classes in my code :D
Best, Sander Azure DevOps Succinctly (free eBook) Azure Serverless Succinctly (free eBook) Migrating Apps to the Cloud with Azure arrgh.js - Bringing LINQ to JavaScript
100% agreed!
Behzad
