selbekk

const object = {};
object + object
// "[object Object][object Object]"
object - object
// NaN
object * object
// NaN
object / object
// NaN

selbekk

const myBirthday = new Date('1987-07-22');
const myPartnersBirthday = new Date('1988-06-08');

const together = myBirthday + myPartnersBirthday;
// "Wed Jul 22 1987 02:00:00 GMT+0200 (CEST)Wed Jun 08 1988 02:00:00 GMT+0200 (CEST)"

selbekk

const myBirthday = new Date('1987-07-22');
const rightNow = new Date();

const numberOfMsIHaveLived = rightNow - myBirthday; 
// 974911520369 or thereabouts

selbekk

const milliseconds = +new Date();

selbekk

const milliseconds = Date.now();

selbekk

const aDateInstance = new Date();
const millisecondsSince1970 = aDateInstance.getTime();

selbekk

import React, { Component } from 'react';
import { connect } from 'react-redux';
import * as dispatchers from '../dispatchers';

class ProfilePage extends Component {
  componentDidMount() {
    this.props.getUser();
  }
  render() {...} // Not really relevant here
}

selbekk

import * as actions from '../actions';

const getUser = () => async dispatch => {
  dispatch(actions.getUserRequested());
  const response = await fetch('/api/user');
  const user = await response.json();
  dispatch(actions.getUserReceived(user);
};
  
  

selbekk

import tp from 'timeproxy';

const SESSION_EXPIRES = tp`in 30 seconds`;
const OLD_POST_TIMESTAMP = tp`two weeks ago`

selbekk

import tp from 'timeproxy';

const TIME_UNTIL_NEXT_PUSH = tp`one week and a day`;
const SHOW_DONT_LEAVE_DELAY = tp`12 minutes 2 seconds`;
const WOW = tp`9 weeks twelve days and .5 seconds`;