https://egghead.io/lessons/react-add-a-toggle-all-complete-button-with-react-native-touchableopacity
https://github.com/browniefed/examples/tree/todo/togglecomplete/todo
npm install
react-native run-android
int the android emulator press: cmd-m
http://localhost:8081/debugger-ui/
in your app's ios folder, look for a file called .xcscheme. There's a property called runnableDebuggingMode = "0" that I set to "1". And all worked as the directions say.
using console.table(obj)
to show a formated output
in constructor: this.myHandler = this.myHandler.bind(this);
myHandler() { .....}
or (ES6):
myHandler = () => { ... }
https://egghead.io/lessons/react-react-native-panresponder-basics https://github.com/joemaddalone/react-native-lessons/tree/master