lewisje

// part of a pair of functions intended to isolate code that kills the optimizing compiler
// https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#2-unsupported-syntax
function functionize(func, arg) {
  switch (typeof func) {
    case 'string':
      return arg ? new Function(String(arg), func) : new Function(func);
    case 'function':
      return func;
    default:
      return function () {return func;};

tlrobinson

// give it a name so it reuses the same window
var win = window.open(null, "redux-devtools", "menubar=no,location=no,resizable=yes,scrollbars=no,status=no");

// reload in case it's reusing the same window with the old content
win.location.reload();

// wait a little bit for it to reload, then render
setTimeout(function() {
    React.render(
        <DebugPanel top right bottom left >

mattiamanzati

Before reading:

This is a soft auth check. Auth check should always be done server side, if not, your rest api are not checking correctly for auth.

1. Auth is in the store.
You need to setup constants for AUTH_SET_TOKEN and AUTH_LOGOUT, 
then create the action creators authSetToken(token) and authLogout() action creators.
Then setup a reducer that when AUTH_SET_TOKEN is dispatched, sets the internal state to {token: token},
and when logout is dispatched, clears it.
Now setup a utility function isLoggedIn(state) function, that only checks in state.auth.token exists, this is a soft check.

sebmarkbage

let cache = new Map();
let pending = new Map();

function fetchTextSync(url) {
  if (cache.has(url)) {
    return cache.get(url);
  }
  if (pending.has(url)) {
    throw pending.get(url);
  }

yelouafi

In this tutorial we're going to build a set of parser combinators.

What is a parser combinator?

We'll answer the above question in 2 steps.

1. What is a parser?
2. and, what is a parser combinator?

So first question: What is parser?