ramubotsplash

function optional_arg(input, options, callback) {
  if (!options) {
    options = {};
  } else if (typeof options === 'function') {
    callback = options;
    options = {};
  }
  //....
}

ramubotsplash

// FROM ReactJs
import React from 'react';
import ReactDOM from 'react-dom';

let rootEl = document.getElementById('botsplash-chat-root');
ReactDOM.render(
   <HostApp
     appId={appId}
     serverUrl={serverUrl}
     settings={settings}

ramubotsplash

// FROM: ReactJs
export default class HostApp extends Component {
  constructor(props: HostAppProps) {
    super(props);
    ...
  }
  componentDidMount() {
    ...
  }
  ...

ramubotsplash

// FROM: ReactJs
activateChat() {
  this.setState({ isChatActive: true });
}

// TO: Js
setState = (updatedState: Object) => {
  this.state = {...this.state, ...updatedState};
  setTimeout(() => this.updateClasses());
}