We would like the ability to group a series of actions to be dispatched with single dispatching functions used as handlers in various parts of our game. The only issue with that, is that animations and other design elements in our game require us to…

We only have a few dispatching functions that need to be known by our React Application. Each one actually has multiple actions that need to be dispatched. While we could just have many imperative calls to dispatch in our dispatching functions, but w…

With our Redux implementation lousy with State ADT based reducers, it is time to hook it all up to a React Shell. Having already built out some UI/UX in React that is connected to our store, we’ll spend the first part of this lesson with a quick tour…

Functor composition is a powerful concept that arises when we have one Functor nested in another Functor. It becomes even more powerful when both of those are Chains, allowing us to apply each Functor’s special properties and effects for a given comp…

Functions in Java Prior to the introduction of Lambda Expressions feature in version 8, Java had long been known as a purely object-oriented programming language. "Everything is an Object" is the philosophy deep in the language design. Objects a…

background In pursuit of a real-world application, let’s say we need an e-commerce web applicationfor a mail-order coffee bean company. They sell several types of coffee and in differentquantities, both of which affect the price. Imperative methods F…

原文链接 middleware 的由来 在业务中需要打印每一个 action 信息来调试,又或者希望 dispatch 或 reducer 拥有异步请求的功能.面对这些场景时,一个个修改 dispatch 或 reducer 代码有些乏力,我们需要一个可组合的.自由增减的插件机制,Redux 借鉴了 Koa 中 middleware 的思想,利用它我们可以在前端应用中便捷地实现如日志打印.异步请求等功能. 比如在项目中,进行了如下调用后,redux 就集成了 thunk 函数调用以及打印日志的功…

In this blog post I will talk about the changes coming in Angular 2 that will improve its support for functional programming. Angular 2 is still in active development, so all the examples are WIP. Please focus on the capabilities and ideas, and not t…

In functional programming, a monad is a design pattern that defines how functions, actions, inputs, and outputs can be used together to build generic types,[1] with the following organization: Define a data type, and how values of that data type are…

1. Functional programming treats computation as the evaluation of mathematical and avoids state and mutable data. Scala encourages an expression-oriented programming(EOP) 1) In expression-oriented programming every statement is an expression. A state…