I've just seen a #programming pattern in #PHP where a method could return two lists of things. Instead of doing that, it takes as a parameter a callable, and passes the two lists to the callable. Instead of:
[$a, $b] = getLists($param);
// Act on both lists.
we have:
$callable = function($a, $b) {
// Act on both lists
}
actOnLists($param, $callable);
🦾 Functional TypeScript #1: Algebraic Data Types | Injuly
"In functional programming, algebraic types are so ubiquitous that you would be hard pressed to find a language that doesn't support them. Strangely though, nothing about them demands that a language be functional by paradigm. That imperative languages have avoided ADTs for decades seems almost an accident."
The GHC developers are very pleased to announce the release of GHC 9.10.1! 🎉
On the menu:
→ GHC2024 language edition
→ Linear let and where
bindings
→ Annotation of exceptions with backtraces
→ Required type arguments for functions
→ Javascript FFI support in the WebAssembly backend
… and many more!
「 CakeML is a functional programming language and an ecosystem of proofs and tools built around the language. The ecosystem includes a proven-correct compiler that can bootstrap itself 」
fp-ts brought advanced #FunctionalProgramming to #TypeScript. Now a related project implementing an effect system for TypeScript (effect-ts) seems to have gotten a lot of VC money. Interesting... Docs look very polished, not sure how they will make money though.