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andys8 /
Created Aug 6, 2017
A cheatsheet to have the fantasy land algebraic specification at a glance

Fantasy Land Specification Cheatsheet


Algebra Methods
Functor map
Apply ap, map
Applicative of, ap, map
Chain chain, ap, map
evancz /
Last active Jun 28, 2021
Ideas and guidelines for architecting larger applications in Elm to be modular and extensible

Architecture in Elm

This document is a collection of concepts and strategies to make large Elm projects modular and extensible.

We will start by thinking about the structure of signals in our program. Broadly speaking, your application state should live in one big foldp. You will probably merge a bunch of input signals into a single stream of updates. This sounds a bit crazy at first, but it is in the same ballpark as Om or Facebook's Flux. There are a couple major benefits to having a centralized home for your application state:

  1. There is a single source of truth. Traditional approaches force you to write a decent amount of custom and error prone code to synchronize state between many different stateful components. (The state of this widget needs to be synced with the application state, which needs to be synced with some other widget, etc.) By placing all of your state in one location, you eliminate an entire class of bugs in which two components get into inconsistent states. We also think yo
honza /
Created Jun 30, 2013
Clojure vs Haskell

Haskell vs Clojure

The JSON data is in the following format

    "Genesis": {
        "1": {
            "1": "In the beginning..." ,
            "2": "..."