Avaq

const I  = x => x
const K  = x => y => x
const A  = f => x => f (x)
const T  = x => f => f (x)
const W  = f => x => f (x) (x)
const C  = f => y => x => f (x) (y)
const B  = f => g => x => f (g (x))
const S  = f => g => x => f (x) (g (x))
const S_ = f => g => x => f (g (x)) (x)
const S2 = f => g => h => x => f (g (x)) (h (x))

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

derjanb

// ==UserScript==
// @name       GM_download emulation
// @namespace  http://tampermonkey.net/
// @version    0.1
// @description  emulate GM_download functionality
// @require    https://github.com/eligrey/FileSaver.js/raw/master/FileSaver.js
// @match      http://tampermonkey.net/empty.html
// @grant      GM_xmlhttpRequest
// @copyright  2014, Jan Biniok
// ==/UserScript==

btroncone

Comprehensive Introduction to @ngrx/store

By: @BTroncone

Also check out my lesson @ngrx/store in 10 minutes on egghead.io!

Update: Non-middleware examples have been updated to ngrx/store v2. More coming soon!

Table of Contents

boyter

// Primitive hash function that for a string returns a positive 32 bit int
// Do not use in production, use murmur3 or fnv1
// You can improve this by changing 5 to 31
Object.defineProperty(String.prototype, 'hashCode', {
  value: function() {
    var hash = 0, i, chr;
    for (i = 0; i < this.length; i++) {
      chr   = this.charCodeAt(i);
      hash  = ((hash << 5) - hash) + chr;
      hash |= 0; // Convert to 32bit integer

endeepak

// Credits: Adam's answer in http://stackoverflow.com/a/20786262/69362
// Paste this in browser's console
var $rootScope = angular.element(document.querySelectorAll("[ui-view]")[0]).injector().get('$rootScope');

$rootScope.$on('$stateChangeStart',function(event, toState, toParams, fromState, fromParams){
  console.log('$stateChangeStart to '+toState.to+'- fired when the transition begins. toState,toParams : \n',toState, toParams);
});

$rootScope.$on('$stateChangeError',function(event, toState, toParams, fromState, fromParams){
  console.log('$stateChangeError - fired when an error occurs during transition.');

Raynos

// Original - @Gozola. This is a reimplemented version (with a few bug fixes).
window.WeakMap = window.WeakMap || (function () {
    var privates = Name()
    
    return {
        get: function (key, fallback) {
            var store = privates(key)
            return store.hasOwnProperty("value") ?
                store.value : fallback
        },

alexaivars

Function::define = (prop, desc) ->
    Object.defineProperty this.prototype, prop, desc

class GetterSetterTest
    constructor: (@_obj = {}) ->

    # 'obj' is defined via the prototype, the definition proxied through
    # to 'Object.defineProperty' via a function called 'define' providing
    # some nice syntactic sugar.  Remember, the value of '@' is
    # GetterSetterTest itself when used in the body of it's class definition.

ekantola

/*
 * Observable
 */

var xs = Rx.Observable.range(0, 3)
xs.subscribe(log)
//=> 0
//=> 1
//=> 2

spiralx

// allcolors.js
// https://github.com/bgrins/devtools-snippets
// Print out CSS colors used in elements on the page.

(function() {
  'use strict'

  const BOLD = 'font-weight: bold;'
  const LINK = 'text-decoration: underline; color: #05f'
  const NORMAL = 'font-weight: normal; text-decoration: none; color: black; background-color: white; display: inline'