Mobile app development with JavaScript

Not a hybrid app, runs actual native code

Learn once, write anywhere

"Intro to RN" by Nutshell's Matt LaForest (YouTube)

Native Components cannot execute in Node.js

Targeting without CSS selectors 

RN Import resolution magic

Resolve require('react-native') to 'react'

Replace native components with React components that render null

Shim all RN APIs with empty functions

Just use react-native-mock

We use Enzyme React testing utilities

No CSS in React Native, how to target components?

Can still use className prop

Or the testId prop (great for Appium testing*)

require('path/img.png') -> path/img@2x.png

Use mockery to replace with a number (example)

component.android.js  &  component.ios.js

Set a platform env_var to control mocking

Text

Text

Text

Text

Text

Text

Text

Text

Text

Text

Text

Text