Update. June, 2016: If you are working on a bigger project you might find Tape not quite up for the job, take a look at React Unit Testing with Enzyme, Lab and Code This is a short intro into testing React applications using Tape. If you were wondering why you should be using Tape over Mocha/Chai/etc, read Eric Elliott’s excellent Medium article on the topic. For this tutorial we’ll be using a tec
The Tilt.com website was originally built using Perl. Perl on the backend helped us get to where we are today, but about a year ago we began …The Tilt.com website was originally built using Perl. Over the years, we added jQuery UI to build widgets that had dynamic page behavior. Perl on the backend and jQuery UI on the frontend helped us get to where we are today, but about a year ago it was clear
When React 0.13 came out, everybody freaked out. The introductory post made it clear that mixins are on their way out: Unfortunately, we will not launch any mixin support for ES6 classes in React. That would defeat the purpose of only using idiomatic JavaScript concepts. There is no standard and universal way to define mixins in JavaScript. In fact, several features to support mixins were dropped
app.js � � V pk/� V var Readable = require('stream').Readable; var es = require('event-stream'); var request = require('superagent'); var React = require('react'); var data1 = '{ "name": "substack" }\n{ "name": "dominictarr" }\n'; var data2 = '{ "name": "mikeal" }\n{ "name": "indutny" }\n{ "name": "dead-horse" }'; function filterOutEmpty (data, cb){ cb(null, data.length ? data : undefined); } func
TL;DR: You can check out a React Flux app with authentication implemented in this Github repository Let’s face it. React is the new cool kid on the block. Everybody is working on creating React components because it entails understanding just 2 basic concepts: A component is just a functionSingle-direction data flowHowever, once you start creating a bigger app, you realize that just using React is
react-router provides great route handling with route params and query params. Flux provides a pattern for building React apps, including a pattern from providing data to your components. Here's a straightforward way to make route changes trigger data changes in your components. Note: Code here reflects usage of react-router 0.11.x. It is often the case that we'll need to trigger data changes in a
React.jsなどを試そうとするときに、browserify? gulp? grunt? webpack? どれ使えばいいのとか、テストは何を使えばいいのかとかよくわからないというのをたまに聞くので、最低限の設定だけどES6で書けたりautobuildやlivereloadが出来る構成のサンプルを作ってみました。 あと、テストはkarma + mocha + power-assertでchromeでテスト出来るようにしています。 本当はpackage.jsonだけにしたかったのですがkarmaの設定だけは別ファイルになってます...。 テストが必要ない場合は、package.jsonの指定だけで大丈夫です。 https://github.com/koba04/minimum-spa-boilerplate git cloneしてnpm installしてnpm startすればいいだけの
This blog site has been archived. Go to react.dev/blog to see the recent posts. At React.js Conf in January we gave a preview of Relay, a new framework for building data-driven applications in React. In this post, we’ll describe the process of creating a Relay application. This post assumes some familiarity with the concepts of Relay and GraphQL, so if you haven’t already we recommend reading our
React入門系の記事はもう結構出尽くしてる感ありますがせっかくなので私も。 今回はReact v0.13RC2を使って↓のアプリケーションを写経してみます。（Authorは私ではありません） 見ての通り、抵抗の値を計算するアプリケーションです。 Reactで書かれていたり、SVG使ってたり面白いソースですね。 ちなみに抵抗の色の仕様はこのようになってます。 抵抗のカラーコード はじめに React v0.13RC2を使う理由は現時点で最新版ということと、v0.13.0beta1でES6のclass構文が使えるようになったからです。 jsfiddleのソースは1ファイルにまとめて書かれていますが、これを1コンポーネント1ファイルに分割して書いてみます。 React(JSX)のビルドにはBabelが使えるので、前回作ったスケルトンの上に作っていきます。 設計 jsfiddleのJSソースの一
This is a tutorial teaching you how to build a real-time app using React.js components and D3 widgets. The app receives new real data through websockets.In this tutorial I will show you how to build a dashboard of React.js components on top of D3 elements, displaying real-time information through websockets (setting up a server via Express). Here is a quick look at what we’ll be building. You can
James Burnett I write software for fun and profit. At the moment, I'm doing front-end web development because it is fun. Note: All of the code can be found on GitHub. This article covers creating an HTML5 based drag and drop container that accepts items from compatible containers, has nice animations, and only uses React.js (no Flux based architectures). Others have written on drag and drop with
This blog site has been archived. Go to react.dev/blog to see the recent posts. React v0.13 is right around the corner and so we wanted to discuss some upcoming changes to ReactElement. In particular, we added several warnings to some esoteric use cases of ReactElement. There are no runtime behavior changes for ReactElement - we’re adding these warnings in the hope that we can change some behavior
A walkthrough of the Test Driven Development (TDD) process for testing React.js components with Jest from requirements to passing tests.James Burnett I write software for fun and profit. At the moment, I'm doing front-end web development because it is fun. Test Driven Development (TDD) is a very powerful and popular development methodology. Testing React.js components is most easily accomplished w
Facebook has recently presented a new way to compose applications, an application architecture they named Flux. They reported that as modern web applications grow in complexity, this model eases the maintenance and the cognitive load required to develop them. I jumped in excitement (it’s true!) as I immediately saw the beauty of the model. But I wanted to understand it and confirm my intuition and
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