React-Native Spotify SDK iOS: Dismiss auth window

I have been developing a react-native application using the following module: Currently, the application opens the authentication window to login to spotify. I do get a return of success but i'm confu...
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2017-04-20 04:04 (2) Answers

state gets updated before setState is called

lifeParser is a method called to process and update boardData. The problem is boardData gets updated while the loop is still processing. lifeParser(){ var parseArray = this.state.boardData.slice(0); for(var i=0;i<30;i++){ for(va...
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2017-04-20 04:04 (2) Answers

React documentation from JSON blobs?

I'm using react-docgen to generate documentation for some React files. I'm able to generate JSON blobs for my components and I've stored them in .json files, but I don't know how to use these blobs to create HTML documentation files (unless I've miss...
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2017-04-19 06:04 (0) Answers

What does the redux docs mean for mapStateToProps?

What does the : stateProps part of this mean? I know that the whole mapStateToProps function is optional and that it takes the first argument of state and an optional second argument of ownProps, but what does a : designate? Is this what the function...
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2017-04-17 01:04 (1) Answers

React Native - NSInvalidArgumentException

I am using react-native-piechart to render a single chart. I have added ART.xcodeprojto my Libraries. I also added libART.a to my Build Phases > Link Binary With Libraries. When I render the chart, my application crashes. When running react-nati...
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2017-04-13 17:04 (1) Answers

Testing React Native via iPhone IOS

This may be a bit of a silly question but i haven't found a solid answer. I have created a React Native app which includes making http requests to an external server ( When i plug my iPhone in, connect to wifi and deploy to devi...
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2017-04-12 07:04 (1) Answers

if else statement in map function reactjs

You don't have to read the whole code, just read the comment in the editQuantity function and in showOrderItem function, specially in the showOrderItem function and my problem is i think just silly, as both of my function are working as they supposed...
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2017-04-03 01:04 (1) Answers

What should be a component?

I am struggling with myself about what needs to be a component? For example: I have a page where everything within is relevant only to itself. I have a text input on every form control; Do I need to wrap this in a component? But every place will...
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2017-03-30 08:03 (2) Answers

ReactNative - Simulator works, iPhone crashes

First app development in ReactNative. I just started to load data in via API and now the App crashes on my phone - but works fine in the simulator. The only errors I have (nothing in console) are from xCode, see image: Any help debugging / fixing ...
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2017-03-29 11:03 (1) Answers

bundle.js appears to be to large for Github

I have a simple test React.js app that I have put together, and I'd like to host it on Github. However when I bundle / compile the app the size of the bundle.js file is ~ 4.5MB. And apparently, Github won't allow files that are this size to be serv...
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2017-03-26 21:03 (2) Answers

Create-react-app and meta-data

Am on a project that is purely client-facing and i have been using create-react-app to kickstart it all and it seems to be working fine. However, I have been encountering problems with understanding create-react-app with seo and I couldn't find any...
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2017-03-23 07:03 (1) Answers

`onEndReached` not fired into animated ScrollView

I'm currently trying to implement an auto-hiding header on my react-native app. Thanks to this example I managed to do so but it broke something. Indeed my onEndReached method isn't called anymore when I reach the end of the list. I also used the Ref...
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2017-03-20 16:03 (0) Answers

Filtering and sorting React

I am new in development React I have a project where I have to add the filter and sort functionality on my table and I really do not know where to start. The template below: How can proceed? import * as React from 'react'; import { SPComponentL...
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2017-03-20 11:03 (2) Answers

Load a css class on hover

I have a div and when i hover that div i want to call another css class. I have used some ways i've found but i cannot get it to work. html code <div className="trait_box polaroid"> <div className="trait_description_div">...
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2017-03-17 05:03 (6) Answers

Wrong components rendered by Preact

I'm using Preact (for all intents and purposes, React) to render a list of items, saved in a state array. Each item has a remove button next to it. My problem is: when the button is clicked, the proper item is removed (I verified this several time), ...
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2017-03-13 22:03 (1) Answers

Ensuring my React Redux app is SEO friendly

When creating my app, I want to make sure my app is as SEO friendly as possible. Aside from making sure my React app is server rendered (via node) and that I have meta-tags on every page, are there any npm packages that improve the SEO performance of...
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2017-03-13 20:03 (0) Answers

Testing with Jest and Webpack aliases

I am looking to be able to use webpack aliases to resolve imports when using jest, and optimally, reference the webpack.aliases to avoid duplication. Jest conf: "jest": { "modulePaths": ["src"], "moduleDirectories": ["node_modules"], ...
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2017-03-06 16:03 (2) Answers