currying

来源： https://stackoverflow.com/questions/11218905/is-it-possible-to-implement-auto-currying-to-the-lisp-family-languages

来源： https://stackoverflow.com/questions/11218905/is-it-possible-to-implement-auto-currying-to-the-lisp-family-languages

来源： https://stackoverflow.com/questions/60191355/typescript-generics-dont-apply-to-previous-function-when-curried-how-to

来源： https://stackoverflow.com/questions/60191355/typescript-generics-dont-apply-to-previous-function-when-curried-how-to

来源： https://stackoverflow.com/questions/60191355/typescript-generics-dont-apply-to-previous-function-when-curried-how-to

问题 In Python, is it considered better style to: explicitly define useful functions in terms of more general, possibly internal use, functions; or, use partial function application to explicitly describe function currying? I will explain my question by way of a contrived example. Suppose one writes a function, _sort_by_scoring, that takes two arguments: a scoring function and a list of items. It returns a copy of the original list sorted by scores based on each item's position within the original

问题 I finally got bored enough in quarantine to start learning Haskell today and I'm really enjoying myself, I really love the aesthetics of the language. Hopefully this question doesn't inspire any hate if it has already been posted here before, etc. It's very simple, but I'm an absolute beginner. I've been trying to understand how to do some simple things elegantly (or at least in a so-called "point free" way) with the language and came upon the problem of how to describe in a clean way the

问题 When I learn thunk, I think they are like function currying. Why is it called thunk? Thunk function add(x, y){ return x + y } function thunk() { return add(10, 20) } Function currying function multiply(a, b, c) { return a * b * c; } function multiply(a) { return (b) => { return (c) => { return a * b * c } } } 回答1: No they are quite different. However, both thunks and currying have applications in functional programming . Thunks Thunks are a functional programming technique used to delay

问题 I've been banging my head against the wall trying to learn about curried functions. Here's what I understand so far; suppose I have a function: fun curry (a b c) = a * b * c; or fun curry a b c = a * b * c; In ML, I can only have one argument so the first function uses a 3-tuple to get around this / get access to a , b , and c . In the second example, what I really have is: fun ((curry a) b) c where curry a returns a function, and (curry a) b returns a function and ((curry a) b) c returns

问题 Example from https://www.typescriptlang.org/docs/handbook/advanced-types.html function getProperty<T, K extends keyof T>(o: T, name: K): T[K] { return o[name]; // o[name] is of type T[K] } Curried version: function curriedGetProperty<T, K extends keyof T>(name: K): (o: T) => T[K] { return (o: T) => o[name]; // o[name] is of type T[K] } const record = { id: 4, label: 'hello' } const getId = curriedGetProperty('id') // Argument of type '"id"' is not assignable to parameter of type 'never'.