ryanflorence

Goals:

1. Provide smooth upgrade path
2. Avoid npm install trolling
3. Shed backwards compatibility quickly

Assumptions:

1. Most package.json entries use ^ like this: ^1.0.0
2. Many app test suites fail with console warnings, and therefore assume

fantactuka

var flattenObj = function (object, target, prefix) {
    prefix = prefix || '';

    return _(object).inject(function(result, value, key) {
        if (_.isObject(value)) {
            flattenObj(value, result, prefix + key + '.');
        } else {
            result[prefix + key] = value;
        }

lelandrichardson

/* eslint no-restricted-syntax:0 */
const hasOwnProperty = Object.prototype.hasOwnProperty;

function shallowDifferences(a, b) {
  const result = [];
  if (a === b) {
    return result;
  }

tkafka

The MIT License (MIT)

Copyright (c) 2014 Tomas Kafka

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

rikukissa

title	slug	createdAt	language	preview
Unit testing Angular.js app with node.js, mocha, angular-mocks and jsdom	unit-testing-angular-js-app-with-node	2015-07-05T18:04:33Z	en	Majority of search result about unit testing Angular.js apps is about how to do it by using test frameworks that run the tests in a real browser. Even though it's great to be able to test your code in multiple platforms, in my opinion it creates a lot of boilerplate code and makes it hard to run the tests in, for instance a CI-server.

Testing Angular.js app headlessly with node.js + mocha

Lean unit tests with minimal setup

gaearon

import { combineReducers } from 'redux';
import users from './reducers/users';
import posts from './reducers/posts';

export default function createReducer(asyncReducers) {
  return combineReducers({
    users,
    posts,
    ...asyncReducers
  });

ryanflorence

.
├── actions
├── stores
├── views
│   ├── Anonymous
│   │   ├── __tests__
│   │   ├── views
│   │   │   ├── Home
│   │   │   │   ├── __tests__
│   │   │   │   └── Handler.js

bvaughn

React lifecycle cheatsheet

Method	Side effects1	State updates2	Example uses
Mounting
componentWillMount		✓	Constructor equivalent for createClass
render			Create and return element(s)
componentDidMount	✓	✓	DOM manipulations, network requests, etc.
Updating
componentWillReceiveProps		✓	Update state based on changed props

anvk

function asyncFunc(e) {
  return new Promise((resolve, reject) => {
    setTimeout(() => resolve(e), e * 1000);
  });
}

const arr = [1, 2, 3];
let final = [];

function workMyCollection(arr) {

jcemer

This is a proposal for a lightning talk at the Reactive 2016 conference. If you like this, star the Gist.

---

Thinking metrics on React applications

In regular websites, it is common to send multiple events to track user clicks. Single Page Applications change the way you look at metrics. This is a talk about a simple pattern we created at Globo.com to manage a metrics layer for http://globoplay.globo.com. The talk will cover how to track user flow using Google Analytics and other services. We solved the challenge of tying metrics and components, keeping information across pages and having global data. Also some React, React Router and React Side Effects concepts like context, higher order components, history state will be covered.