---
title: "This week's React news, issue 24"
publication: "React Status"
issue: 24
published_at: "2017-02-17"
canonical_url: "https://react.statuscode.com/issues/24"
---

react status 24   

This week's React news -[Read this on the Web](http://react.statuscode.com/issues/24) 

[react status](http://react.statuscode.com) Issue 24     

[What is 'Context' in React Applications?](http://javascriptplayground.com/blog/2017/02/context-in-reactjs-applications/?utm_source=reactnl&utm_medium=email) — Jack says there’s a lot of confusion amongst React developers over what _context_ is and why it exists. He digs into its usage and relevance here. Jack Franklin [React-Select: A Flexible Select Input Control for React](http://jedwatson.github.io/react-select/?utm_source=reactnl&utm_medium=email) — Incudes multi-select, auto-complete and Ajax support. Jed Watsoncode [Building A Simple Camera App Clone for iOS with React Native](https://steinar.io/building-your-own-camera-app-for-ios-with-react-native/?utm_source=reactnl&utm_medium=email) — About as simple as it gets. Steinar Bragi Sigurðarsonnative [New Course: Make back-end developers jealous, with Elm 😉](http://go.cooperpress.com/rs/react24/frontendmasters.com/courses/elm/) — Write bullet-proof, easily maintainable web applications with Elm, the functional programming language that is transforming web application development. Frontend Masterssponsored [![\](https://copm.s3.amazonaws.com/27b1a5c4.png)](http://go.cooperpress.com/rs/react24/frontendmasters.com/courses/elm/) [redux-query: A Way to Query and Manage Network State](https://amplitude.engineering/introducing-redux-query-7734e7215b3b?utm_source=reactnl&utm_medium=email) — Store all of your network state inside your existing Redux store. Features automatic request cancellation, optimistic updates, response caching and deduplication. Ryan Ashcrafttools [Building React Components for Multiple Brands and Applications](https://medium.com/walmartlabs/building-react-components-for-multiple-brands-and-applications-7e9157a39db4?utm_source=reactnl&utm_medium=email) — How Walmart handle their application architecture to cater for multi-tenancy/multi-branding needs. Alex Grigoryan [How Does React Decide to Re-Render A Component?](http://lucybain.com/blog/2017/react-js-when-to-rerender/?utm_source=reactnl&utm_medium=email) Lucy Bain [How to Build Animated Microinteractions in React](https://medium.freecodecamp.com/how-to-build-animated-microinteractions-in-react-aab1cb9fe7c8?utm_source=reactnl&utm_medium=email) Christian Sepulveda [Watch Out for Undefined State](https://daveceddia.com/watch-out-for-undefined-state/?utm_source=reactnl&utm_medium=email) Dave Ceddia [How to Build a Realtime Shopping Cart with Java and React](https://blog.pusher.com/realtime-shopping-cart-with-java-and-react/?utm_source=reactnl&utm_medium=email) — Uses Pusher to sync the content of a cart between devices and tabs. Esteban Herrera [React and Redux Sagas Authentication App Tutorial](http://start.jcolemorrison.com/react-and-redux-sagas-authentication-app-tutorial/?utm_source=reactnl&utm_medium=email) J Cole Morrison [Track errors in your React apps with Sentry](http://go.cooperpress.com/rs/react24/sentry.io/from/reactstatus/?utm_source=reactstatus&utm_medium=display&utm_campaign=node3) — Sentry's open-source error tracking tells you when your code breaks, without the need for bug reports. Sentrytools sponsored [json2react: Use JSON to Create React Stateless Components](https://github.com/txgruppi/json2react?utm_source=reactnl&utm_medium=email) github.​comtools [Reactive Maps: React Components for Building Realtime Maps](https://github.com/appbaseio/reactivemaps/?utm_source=reactnl&utm_medium=email) appbase.​iocode [Boundless: Accessible, Battle-Tested, Composable React Components](http://boundless.js.org/?utm_source=reactnl&utm_medium=email) boundless.​js.​orgcode [redux-store-validator: Add Validation to Your Redux Reducers](https://github.com/alixander/redux-store-validator?utm_source=reactnl&utm_medium=email) Alexander Wangcode    [Read this issue on the Web](http://react.statuscode.com/issues/24) [See our archives](http://react.statuscode.com/issues) [Stop getting this newsletter](*|UNSUB|*)  

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