Answer1215

摘要： We've seen how we can transduce from arrays or other iterables, but plain objects aren't iterable in Javascript. In this lesson we'll modify our trans 阅读全文

摘要： For example we have 'a' -> 1 'b' -> 2 .. 'z' -> 26 By given "12", we can decode the string to give result "ab" or 'L', 2 ways to decode, your function 阅读全文

摘要： We see three varied examples of where natural transformations come in handy. Let's mark the law here for Natural Transformations: Then let's see why w 阅读全文

摘要： Natural Transformations, let's explain it by using a coding example, for example, we have a 'Either' holding a value 'a' and we want to transform a' T 阅读全文

摘要： We use the traversable instance on List to reimplement Promise.all() type functionality. For example we want to conver: Conver array of Task, into Tas 阅读全文

摘要： We annihilate the need for the ol' nested for loop using Applicatives. For example we have this kind of nested loop code: We can refactor it by using 阅读全文

摘要： Working our way backwards from solution to problem, we define an applicative functor, then use it to apply a function of multiple arguments. For examp 阅读全文

摘要： Given a string, find the longest subsequence consisting of a single character. Example: longest("ABAACDDDBBA") should return {'D': 3}. 阅读全文

摘要： We refactor a standard node callback style workflow into a composed task-based workflow. Original Code: Using Task: Using Async: 阅读全文

摘要： Let's examine a pointfree way to write these applicative calls. Since we know map is equal to of/ap, we can write generic functions that will ap as ma 阅读全文