MoreLINQ
BQN
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MoreLINQ | BQN | |
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21 | 49 | |
3,590 | 835 | |
1.0% | - | |
7.8 | 8.8 | |
25 days ago | 5 days ago | |
C# | KakouneScript | |
Apache License 2.0 | ISC License |
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MoreLINQ
- What your hidden nuget gems ?
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Do you know about the DistinctBy method?
You can grab MoreLinq off of Nuget for pre-.NET6 and it has a DistinctBy implementation that you might be able to use: https://github.com/morelinq/MoreLINQ
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Three words.,, => C# Functional Programming is awesome!!! Do you seasoned developers have any war-stories or nightmare stories regarding Functional Programming?
Install "morelinq" 3.3.2 from Nuget: https://www.nuget.org/packages/morelinq You know you got the right one if it has about 37.2 million downloads.
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Is there a reason why a WithIndex() extension method isn't apart of the standard library?
If you don't already know about it, I highly recommend checking out the MoreLINQ open source project which adds a bunch of these less common but still occasionally useful extensions to LINQ. They also include an Index method which does exactly what your WithIndex method does, yielding out KeyValuePair entries for each iteration.
- How to remove duplicates from a list, I've tried multiple approaches but with no luck. Can You help me out or point me in the right direction, please. My attempts are in the post
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Just had a Senior Technical Interview that was so bad and such a waste of time that I burnt that bridge and burnt it hard. If this is how your company interviews people please stop.
yield return is a significant core piece of the framework. It's the basis of which most deferred execution and LINQ is built upon and any extension one would want to add to LINQ. (for example)
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it feels as though the LINQ queries are inferior to simply using the Enumerable extensions, is there something i'm missing?
For a time, I'd say the Query Syntax was comparatively as popular as the Method Syntax. But over the years as LINQ became ubiquitous for working with non-database queries (LINQ-to-Objects) and more users extended them (for example, MoreLinq) the Method Syntax became more popular. I'd say nowadays the Query Syntax is relatively rare to see and perhaps mostly limited to direct database queries or these scenarios like "join" that are easier.
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Full outer join in LINQ
I suggest morelinq https://github.com/morelinq/MoreLINQ
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Things I don't like or confused me in C#
If you don't already know about it, take a gander at the MoreLINQ extensions. I don't think it solves this particular problem, but it's a great example of extending LINQ.
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-🎄- 2021 Day 1 Solutions -🎄-
It's part of the MoreLinq library. The Window() function code is here.
BQN
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Bare minimum atw-style K interpreter for learning purposes
I recommend checking BQN at https://mlochbaum.github.io/BQN/ and the YouTube channel code_report by Conor Hoekstra (and also "Composition Intuition by Conor Hoekstra | Lambda Days 2023"). It is well documented.
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YAML Parser for Dyalog APL
I don't put a lot of stock in the "write-only" accusation. I think it's mostly used by those who don't know APL because, first, it's clever, and second, they can't read the code. However, if I remember I implemented something in J 10 years ago, I will definitely dig out the code because that's the fastest way by far for me to remember how it works.
This project specifically looks to be done in a flat array style similar to Co-dfns[0]. It's not a very common way to use APL. However, I've maintained an array-based compiler [1] for several years, and don't find that reading is a particular difficulty. Debugging is significantly easier than a scalar compiler, because the computation works on arrays drawn from the entire source code, and it's easy to inspect these and figure out what doesn't match expectations. I wrote most of [2] using a more traditional compiler architecture and it's easier to write and extend but feels about the same for reading and small tweaks. See also my review [3] of the denser compiler and precursor Co-dfns.
As for being read by others, short snippets are definitely fine. Taking some from the last week or so in the APL Farm, {⍵÷⍨+/|-/¯9 ¯11+.○?2⍵2⍴0} and {(⍸⍣¯1+\⎕IO,⍺)⊂[⎕IO]⍵} seemed to be easily understood. Forum links at [4]; the APL Orchard is viewable without signup and tends to have a lot of code discussion. There are APL codebases with many programmers, but they tend to be very verbose with long names. Something like the YAML parser here with no comments and single-letter names would be hard to get into. I can recognize, say, that c⌿¨⍨←(∨⍀∧∨⍀U⊖)∘(~⊢∊LF⍪WS⍨)¨c trims leading and trailing whitespace from each string in a few seconds, but in other places there are a lot of magic numbers so I get the "what" but not the "why". Eh, as I look over it things are starting to make sense, could probably get through this in an hour or so. But a lot of APLers don't have experience with the patterns used here.
[0] https://github.com/Co-dfns/Co-dfns
[1] https://github.com/mlochbaum/BQN/blob/master/src/c.bqn
[2] https://github.com/mlochbaum/Singeli/blob/master/singeli.bqn
[3] https://mlochbaum.github.io/BQN/implementation/codfns.html
[4] https://aplwiki.com/wiki/Chat_rooms_and_forums
- k on pdp11
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Uiua: Weekly challenge 242
Uiua is an interesting new language. Strongly influenced by APL and BQN, it's array-oriented and stack-based. To explore it briefly, I will walk through my solutions to this week's Perl weekly challenge (242).
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Ask HN: What are the best / most accessible languages for blind programmers?
https://mlochbaum.github.io/BQN/
Forth and Lisps tend to be fairly visual syntax free as well.
I'm just speculating though, looking for someone with experience to confirm or rebuke.
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Uiua: A minimal stack-based, array-based language
> Are there any other languages that use glyphs so heavily?
APL (the first, invented in the 1960s): https://en.wikipedia.org/wiki/APL_(programming_language)
BQN (a modern APL, looks like an inspiration for Uiua though I don't know): https://mlochbaum.github.io/BQN/
Too many smaller esoteric languages to count.
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Ask HN: Best APL Keyboards. Any Ideas?
There is no need to have a specific keyboard. The actual solution depends on what APL you're using, but the principle is the same. The various symbols are available on the regular keys, and you use some way to indicate that you want the APL symbol rather than the regular symbol.
Dyalog has two different IDE's the support this. Ride uses backquote by default, while the windows IDE uses control.
Kap uses backquote in all its interfaces. Here's what it looks like in the web version: https://kapdemo.dhsdevelopments.com/clientweb2/
Likewise, BQN does the same thing, but uses backslash: https://mlochbaum.github.io/BQN/
When using GNU APL there is an Emacs mode available (which I am the author of) that provides an input method.
So the long story short, you should be able to get going with any array language without getting any special keyboard.
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Is there a programming language that will blow my mind?
Vouch for array programming, but also BQN. Modern, very good documentation, a bit less confusing than APL imo.
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Suggestivity and Idioms in APL
For anyone looking to get into array programming, I'd recommend https://mlochbaum.github.io/BQN/. I'm no expert but I had a lot of fun using it for Advent of Code last year. I found it to be a lot more sensible and modern feeling than J (the only other one I've tried).
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K: We need to talk about group
There’s also at least BQN, which I suspect is the language used in those comments:
https://mlochbaum.github.io/BQN/
What are some alternatives?
language-ext - C# functional language extensions - a base class library for functional programming
APL - another APL derivative
NetFabric.Hyperlinq - High performance LINQ implementation with minimal heap allocations. Supports enumerables, async enumerables, arrays and Span<T>.
Co-dfns - High-performance, Reliable, and Parallel APL
Extensions-And-Utilities-For-Unity - A collection of Extension methods and Utility classes for the System, UnityEngine, and UnityEditor namespaces.
sbcl - Mirror of Steel Bank Common Lisp (SBCL)'s official repository
JFlepp.Maybe - A Maybe type for C#, aimed as an idiomatic port of the option type in F# to C#
type-system-j - adds an optional type system to J language
Curryfy - Provides strongly typed extensions methods for C# delegates to take advantages of functional programming techniques, like currying and partial application.
Kbd - Alternative unified APL keyboard layouts (AltGr, Backtick, Compositions)
Optional - A robust option type for C#
TablaM - The practical relational programing language for data-oriented applications