theKashey

...

const FetchData = (localStore) =>
    apiClient.MakeRequestToServer()
        .then(_ => localStore.dispatch(RequestSucceeded(_))
        .catch(_ => localStore.dispatch(RequestFailed(_)));

...

automata

theKashey

const light = faste()
      .withPhases(['red', 'yellow', 'green'])
      .withMessages(['tick'])

      .on('tick', ['red'], ({transitTo}) => transitTo('yellow'))
      .on('tick', ['yellow'], ({transitTo}) => transitTo('green'))
      .on('tick', ['green'], ({transitTo}) => transitTo('red'))

      .create();

theKashey

export const DragMachine = faste()
  .withPhases(['init', 'dragging'])
  .withMessages(['mousedown', 'mouseup', 'mousemove'])
  .withSignals(['up', 'down', 'move'])

  // reactions
  .on('mousedown', ({transitTo, emit}, event) => { emit('down', event);transitTo('dragging')}})
  .on('mouseup', ({transitTo}) => transitTo('idle'))
  .on('mousemove', ({emit}, event) => emit('move', event))

theKashey

const light = faste()
      .withPhases(['red', 'yellow', 'green'])
      .withMessages(['tick'])
      .withState({direction: 1})

      .on('tick', ['red'], ({transitTo, setState}) => {
        setState({direction: 1}); // swap!
        transitTo('yellow')
      })
      .on('tick', ['yellow'], ({transitTo, state}) => transitTo(state.direction ? 'green' : 'red'))

theKashey

import { ReactWrapper, ShallowWrapper } from 'enzyme';

export async function until<T extends (ShallowWrapper | ReactWrapper)>(
  predicate: () => T,
  text: string = 'until ',
  timeoutDuration: number = 1000
): Promise<T> {
  return new Promise<T>((resolve, reject) => {
    const interval = setInterval(() => {
      const result: T = predicate();

theKashey

var map = new WeakMap();
var index = 0;

function weakKey(obj) {
  var key = map.get(obj);
  if (!key) {
    key = 'weak-key-' + index++;
    map.set(obj, key);  
  }
  return key;

theKashey

let counter++;
class Id extends React.Component {
  state = {
    id: counter++ // acquire unique id on component creating
  }    
  render() {
    this.props.children('id'+this.state.counter); // pass it down
  }  
}  

theKashey

html, body {
  overflow: hidden;
}

theKashey

body {
  -webkit-overflow-scrolling: touch;
}

theKashey

someElement.ontouchstart = (e) => {
    e.preventDefault();
};