[RxJS] Reactive Programming - Rendering on the DOM with RxJS

<!DOCTYPE html> <html> <head> <script src="https://code.jquery.com/jquery-1.7.2.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/4.0.8/rx.all.js"></script> <meta charse…

[RxJS] Reactive Programming - Clear data while loading with RxJS startWith()

In currently implemention, there is one problem, when the page load and click refresh button, the user list is not immediatly clean up,it is cleared after the new data come in. So two things we need to do, 1. Hide User Elements when the user object i…

[RxJS] Reactive Programming - Using cached network data with RxJS -- withLatestFrom()

So now we want to replace one user when we click the 'x' button. To do that, we want: 1. Get the cached network data for generating the userList. 2. Then get a random user from the cached data. 3. Showing the user in the list. We have the function to…

[RxJS] Reactive Programming - What is RxJS?

First thing need to understand is, Reactive programming is dealing with the event stream. Event streams happens overtime, which not stay in the memory. For example, the array we have: var source = ['1', '1', 'foo', '2', '3', '5', 'bar', '8', '13']; W…

[Reactive Programming] Async requests and responses in RxJS

We will learn how to perform network requests to a backend using RxJS Observables. A example of basic jquery request: console.clear(); var requestStream = Rx.Observable.just('https://api.github.com/users'); //Current requestStream is just a stream //…

[RxJS] Reactive Programming - Why choose RxJS?

RxJS is super when dealing with the dynamic value. Let's see an example which not using RxJS: var a = 4; var b = a * 10; console.log(b); a = 5; console.log(b); So you change a, it won't affect b's value because b is already defined.... So if you want…

[RxJS] Reactive Programming - Sharing network requests with shareReplay()

Currently we show three users in the list, it actually do three time network request, we can verfiy this by console out each network request: var responseStream = startupRequestStream.merge(requestOnRefreshStream) .flatMap(requestUrl => { console.log…

[RxJS] Reactive Programming - New requests from refresh clicks -- merge()

Now we want each time we click refresh button, we will get new group of users. So we need to get the refresh button click event stream: var refreshButton = document.querySelector('.refresh'); var refreshClickStream = Rx.Observable.fromEvent(refreshBu…

[Reactive Programming] RxJS dynamic behavior

This lesson helps you think in Reactive programming by explaining why it is a beneficial paradigm for programming. See how reactive programming helps you understand the dynamic behavior of a value evolving over time. It allows you to specify the dyna…

[Reactive Programming] Using an event stream of double clicks -- buffer()

See a practical example of reactive programming in JavaScript and the DOM. Learn how to detect double clicks with a few operators in RxJS. <!DOCTYPE html> <html> <head> <script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/2.3…

指路Reactive Programming

指路Reactive Programming Mar 02, 2016 in Engineering 我在工作中采用Reactive Programming(RP)已经有一年了,对于这个“新鲜”的辞藻或许有一些人还不甚熟悉,这里就和大家说说关于RP我的理解.希望在读完本文后,你能够用Reactive Extension进行RP. 需要说明的是,我实在不知道如何翻译Reactive Programming这个词组,所以在本文中均用RP代替,而不是什么“响应式编程”.“反应式编程”.本文假定你对Ja…

.Net中的反应式编程(Reactive Programming)

系列主题:基于消息的软件架构模型演变一.反应式编程(Reactive Programming) 1.什么是反应式编程:反应式编程(Reactive programming)简称Rx,他是一个使用LINQ风格编写基于观察者模式的异步编程模型.简单点说Rx = Observables + LINQ + Schedulers. 2.为什么会产生这种风格的编程模型?我在本系列文章开始的时候说过一个使用事件的例子: var watch = new FileSystemWatcher(); watch.C…

Unity基于响应式编程(Reactive programming)入门

系列目录 [Unity3D基础]让物体动起来①--基于UGUI的鼠标点击移动 [Unity3D基础]让物体动起来②--UGUI鼠标点击逐帧移动时光煮雨 Unity3D让物体动起来③—UGUI DoTween&Unity Native2D实现时光煮雨 Unity3D实现2D人物动画① UGUI&Native2D序列帧动画时光煮雨 Unity3D实现2D人物动画② Unity2D 动画系统&资源效率背景前有慕容小匹夫的一篇<解构C#游戏框架uFrame兼谈游戏架构设计&…

ReactiveCocoa与Functional Reactive Programming

转自 http://blog.leezhong.com/ios/2013/06/19/frp-reactivecocoa.html Functional Reactive Programming(以下简称FRP)是一种响应变化的编程范式.先来看一小段代码 a = 2 b = 2 c = a + b // c is 4 b = 3 // now what is the value of c? 如果使用FRP,c的值将会随着b的值改变而改变,所以叫做「响应式编程」.比较直观的例子就是Excel,当改…

"Principles of Reactive Programming" 之<Actors are Distributed> （1）

week7中的前两节课的标题是”Actors are Distributed",讲了很多Akka Cluster的内容,同时也很难理解. Roland Kuhn并没有讲太多Akka Cluster自身如何工作的细节,而是更关注于如何利用Akka Cluster来把Actor分布到不同的节点上,或许这么安排是因为Akka Cluster能讲的东西太多,而Coursera的课时不够.但是,从听众的角度来说,这节课只是初步明白了下Akka Cluster能干啥,但是想要自己用起来,特别是想了解其工作的…

"reactive programming"的概念

下面的内容大多是翻译来的. Reactive Programming? What is Reactive Programming? 为了了解Reactive——从编程范式至其背后的动机,有必要了解现在的开发者和公司在十年前不曾面对的挑战. 游戏的改变主要有两大方面: 硬件的提升因特网 Why things are different now? (原文对比了一遍2005年和2014年因特用户的增长:10亿至29.5亿:Facebook用户的增长:550万至13亿: twitter从无至有,0至2…

"Principles of Reactive Programming" 之 <Persistent Actor State>学习笔记

这是<Pinciples of Reactive Programming>week6的最后一课. 为什么需要把actor的状态持久化? 如果actor没有状态,那么在任何实时,这个actor的行为都是一致的.但是对于有状态的actor,其行为跟当前状态相关.所以当系统由于意外down掉以后,需要恢复系统的状态,意味着需要恢复actor的状态. Actors representing a stateful resource shall not lose important state due t…

Reactive Programming

Reactive的表现 Reactive 规范是 JVM Reactive 扩展规范 Reactive Streams JVM,而 Reactive 实现框架则是最典型的实现: Reactive Streams /Java 9 一个非常底层的约定,提供了Publisher和Subscriber接口. Java 9 提供了Flow API 的支持 Spring Framework 5.0 / ReactorSpring 5,以 Reactive 为基础的Reactor框架 ,逐步构建一套完整的 R…

Functional Reactive Programming

Functional Reactive Programming (FRP) integrates time flow and compositional events into functional programming. This provides an elegant way to express computation in domains such as interactive animations, robotics, computer vision, user interfaces…

[转帖]浅谈响应式编程（Reactive Programming）

浅谈响应式编程(Reactive Programming) https://www.jianshu.com/p/1765f658200a 例子写的非常好呢. 0.9312018.02.14 21:22:16字数 1877阅读 9816 这是告别CSDN后第一次使用简书写IT类的博客,还在适应.最不适应的就是不能直接手输markdown语法标记.(好像原因是我没有切换编辑器) 什么是响应式编程(Reactive Programming) In computing, reactive program…

响应式编程（Reactive Programming）（Rx）介绍

很明显你是有兴趣学习这种被称作响应式编程的新技术才来看这篇文章的. 学习响应式编程是很困难的一个过程,特别是在缺乏优秀资料的前提下.刚开始学习时,我试过去找一些教程,并找到了为数不多的实用教程,但是它们都流于表面,从没有围绕响应式编程构建起一个完整的知识体系.库的文档往往也无法帮助你去了解它的函数.不信的话可以看一下这个: 通过合并元素的指针,将每一个可观察的元素序列放射到一个新的可观察的序列中,然后将多个可观察的序列中的一个转换成一个只从最近的可观察序列中产生值得可观察的序列. 天啊. 我看过…

函数式响应式编程 - Functional Reactive Programming

我们略过概念,直接看函数式响应式编程解决了什么问题. 从下面这个例子展开: 两个密码输入框,一个提交按钮. 密码.确认密码都填写并一致,允许提交:不一致提示错误. HTML 如下: <input id="pwd" placeholder="输入密码" type="password" /><br /> <input id="confirmPwd" placeholder="再次确认&quo…

"Principles of Reactive Programming" 之<Actors are Distributed> （3）

Cluster 讲课的这哥们接下来讲了下Akka Cluster的使用,但是是通过把一个以前讲过的actor 系统改成使用cluster来介绍的Akka cluster. 这部分代码很多,还是直接看视频吧.或者,看这篇文章, Akka Clustering, Step by Step 更直白一些,不用事先了解课程中那个比较复杂的例子. 还是从正常的顺序了解下Akka Cluster吧. Akka Clustering用来解决什么问题? Akka Cluster provides a fault-…

"Principles of Reactive Programming" 之<Actors are Distributed> （2）

Actor Path 我们知道actor是有层级的(hierarchical),第.每个actor在它的父actor的名字空间下都有一个名字.这样就构成了一个树状的结构,就像是文件系统.每个actor就像文件系统里的一个文件夹,因为每个actor都可以有子actor,因此,它们更像是文件夹,而不是文件. val system = ActorSystem("HelloWorld") val ref = system.actorOf(Props[Greeter], "greete…

[RxJS] Aggregating Streams With Reduce And Scan using RxJS

What is the RxJS equivalent of Array reduce? What if I want to emit my reduced or aggregated value at each event? This brief tutorial covers Observable operators reduce() and scan(), their differences and gotchas. In ES5, the Array's reduce function…

[RxJS] Toggle A Stream On And Off With RxJS

This lesson covers how to toggle an observable on and off from another observable by showing how to use a checkbox as a toggle for a stream of data. <!DOCTYPE html> <html> <head> <script src="https://npmcdn.com/@reactivex/rxjs@5.…

[RxJS] Implement the `map` Operator from Scratch in RxJS

While it's great to use the RxJS built-in operators, it's also important to realize you now have the knowledge to write them by yourself if needed. The mapoperator turns out to be a simple MapSubscriber which takes a function and applies it to the va…

[RxJS] Create a Reusable Operator from Scratch in RxJS

With knowledge of extending Subscriber and using source.lift to connect a source to a subscriber, you can now create your own operators by writing functions that return a source.lift call. This lesson creates a simple "multiply" operator in RxJS…

[RxJS] Implement pause and resume feature correctly through RxJS

Eventually you will feel the need for pausing the observation of an Observable and resuming it later. In this lesson we will learn about use cases where pausing is possible, and what to do when pausing is impossible. const resume$ = new Rx.Subject();…

react programming

So you're curious in learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others. 相信你们在学习响应式编程这个新技术的时候都会充满了好奇,特别是它的一些变体,包括Rx系列.Bacon.js.RAC和其他的一些变体. Learning it is hard, even harder by the…

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