swift-linq-examples

As LINQ has been positioned as one of C#/.NET's biggest strengths their 101 LINQ Examples are a nice set of simple code examples to compare how well different languages fare against each other: - Swift https://github.com/mythz/swift-linq-examples - Kotlin https://github.com/mythz/kotlin-linq-examples - Java https://github.com/mythz/java-linq-examples (Java 1.7) - Clojure https://github.com/mythz/clojure-linq-examples - Dart https://github.com/mythz/dart-linq-examples - #Script LISP https://sharpscript.net/linq/restriction-operators?lang=lisp (Interactive, .NET Lisp) - #Script Code https://sharpscript.net/linq/restriction-operators?lang=code (Interactive, .NET JS-Like) - Elixir https://github.com/omnibs/elixir-linq-examples - Python https://github.com/rogerwcpt/python-linq-samples - Groovy https://gitlab.com/svkj/groovy-linq-samples Most l

Many other languages offer similar functional APIs for querying collections, here is C#'s 101 LINQ Examples rewritten in different languages: https://github.com/mythz/swift-linq-examples https://github.com/mythz/kotlin-linq-examples https://github.com/mythz/clojure-linq-examples https://github.com/mythz/java-linq-examples https://github.com/mythz/dart-linq-examples https://github.com/omnibs/elixir-linq-examples http://templates.servicestack.net/linq/ Java 8+ has since improved with their Streams API. The primary benefit that differentiates LINQ apart is that you can easily capture the Expression tree of the LINQ expression and rewrite its intent to apply to other sources, commonly used in LINQ -> SQL to provide a Typed Expression API for generating equivalent SQL to run on an RDBMS.

I guess not many came across this guide. For LINQ to other languages: Swift Java Kotlin Clojure Dart Elixir https://github.com/mythz/swift-linq-examples

Java's one of the worst language examples of using FP collections I've seen. Even with hindsight I still find this to be uglier and unnecessarily more verbose than it needs to be. E.g. same Example in Dart: class Article { String title; String author; List<String> tags; Article(this.title, this.author, this.tags); } Article getFirstJavaArticle() => articles.firstWhere((x) => x.tags.contains("Java")); List<Article> getAllJavaArticles() => articles.where((x) => x.tags.contains("Java")); List<String> getDistinctTags() => articles.expand((x) => x.tags).toSet().toList(); Can even be shorter without the Optional typing, but it's more readable to be explicit to have them. Dart benefits from having Collection and Stream mixins so you always get a rich API on Dart's collecti

You can add your own operator overloading of different number types to mitigate the casting required see: https://github.com/jquave/EasyCast You can also add your own String extension for length and index character at in a String with: extension String { var length: Int { return countElements(self) } subscript (i: Int) -> String { return String(Array(self)[i]) } } Which will now let you use `.length` on strings, e.g: "Cat".length; //3 And get the character at index with: "Cat"[1]; //a I've more useful extensions at: https://github.com/mythz/swift-linq-examples/blob/master/src... Which enables LINQ-like querying in Swift: https://github.com/mythz/swift-linq-examples

The main thing I miss from Swift is its extensibility letting you extend primitive types like Arrays or Strings, this lets you easily add LINQ-like capabilities even tho Swift doesn't ship with many, see: https://github.com/mythz/swift-linq-examples Dart comes with a rich functional and Stream API's on collections so most of the time you wont need to extend it (same LINQ examples in Dart: https://github.com/dartist/101LinqSamples), but unfortunately you can't extend built-in (or external) types which means you need to use top-level methods which can break-up the flow of your beautiful expression flows. Extensions is also important for minimizing unnecessary abstraction and maximizing re-usability since you can extend without being forced to create foreign wrapper API's. IMO Extensions are one of the most important traits for keeping a min