thevangelist

import React from 'react';
import { shallow } from 'enzyme';
import MyComponent from '../src/my-component';

const wrapper = shallow(<MyComponent/>);

describe('(Component) MyComponent', () => {
  it('renders without exploding', () => {
    expect(wrapper).to.have.length(1);
  });

ryanflorence

import React, { Component } from "react"
import { Machine } from "xstate"
import * as PropTypes from "prop-types"

class FiniteMachine extends Component {
  machine = Machine(this.props.chart)

  state = {
    data: this.props.reducer(undefined, { type: "@init" }),
    machineState: this.machine.getInitialState()

busypeoples

// TypeScript Fundamentals For JavaScript Developers

/*
  Tutorial for JavaScript Developers wanting to get started with TypeScript.
  Thorough walkthrough of all the basic features.
  We will go through the basic features to gain a better understanding of the fundamentals.
  You can uncomment the features one by one and work through this tutorial.
  If you have any questions or feedback please connect via Twitter:
  A. Sharif : https://twitter.com/sharifsbeat
*/

abhiaiyer91

Redux Selector Pattern

Imagine we have a reducer to control a list of items:

function listOfItems(state: Array<Object> = [], action: Object = {}): Array<Object> {
  switch(action.type) {
    case 'SHOW_ALL_ITEMS':
      return action.data.items
    default:

ericelliott

// Action creators can be impure.
export const addChat = ({
  // cuid is safer than random uuids/v4 GUIDs
  // see usecuid.org
  id = cuid(),
  msg = '',
  user = 'Anonymous',
  timeStamp = Date.now()
} = {}) => ({
  type: ADD_CHAT,

mohsen1

function Event(name){
  this.name = name;
  this.callbacks = [];
}
Event.prototype.registerCallback = function(callback){
  this.callbacks.push(callback);
}
 
function Reactor(){
  this.events = {};

corpix

(function(Backbone, _) {
  var leave;

  _.extend(Backbone.Router.prototype, Backbone.Events, {
    route : function(route, name, callback) {
      var before
        , fn = callback
        , after;

      Backbone.history || (Backbone.history = new Backbone.History);

bmaeser

lines with $ are commands

### install mkvtoolnix:

$ brew install mkvtoolnix

### list content of the mkv-file:
$ mkvmerge -i mymoviefile.mkv

### what will give you:

DimitryDushkin

import { browserHistory } from 'react-router';

/**
 * @param {Object} query
 */
export const addQuery = (query) => {
    const location = Object.assign({}, browserHistory.getCurrentLocation());
    Object.assign(location.query, query);
    browserHistory.push(location);
};

benatkin

// Place user-specific overrides in this file, to ensure they're preserved
// when upgrading
{
  "folder_exclude_patterns": [".svn", ".git", ".hg", "CVS", "node_modules"]
}