jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

amcdnl

Why I hate TypeScript

Warning: These views are highly oppinated and might have some slightly incorrect facts. My experience with typescript was about 2 weeks in Node and a week in angular2.

Not Standard

TypeScript is implementing their own take on JavaScript. Some of the things they are writing will likely never make it in an official ES* spec either.

Technologies that have competing spec / community driven development have a history of failing; take: Flash, SilverLight, CoffeeScript, the list goes on. If you have a large code base, picking TypeScript is something your going to be living with for a long time. I can take a bet in 3 years JavaScript will still be around without a doubt.

Its also worth noting that they have built some things like module system and as soon as the spec came out they ditched it and started using that. Have fun updating!

imjasonh

* {
    font-size: 12pt;
    font-family: monospace;
    font-weight: normal;
    font-style: normal;
    text-decoration: none;
    color: black;
    cursor: default;
}

kentcdodds

function getWatchers(root) {
  root = angular.element(root || document.documentElement);
  var watcherCount = 0;
 
  function getElemWatchers(element) {
    var isolateWatchers = getWatchersFromScope(element.data().$isolateScope);
    var scopeWatchers = getWatchersFromScope(element.data().$scope);
    var watchers = scopeWatchers.concat(isolateWatchers);
    angular.forEach(element.children(), function (childElement) {
      watchers = watchers.concat(getElemWatchers(angular.element(childElement)));

alejandrolechuga

import OAuth from 'oauth-1.0a';
import CryptoJS from 'crypto-js';

/**
 * oAuthHeader - Get Authentication header with OAuth.
 *
 * @param  {string} url    Request URL
 * @param  {string} method HTTP method.
 * @return {object}        Authentication header object
 */

alejandrolechuga

// mutators
// push , pop, shift, unshift 
var array = [];
/
function memoria(limit) {
  var array = [];
  return function (element) {
    var isSet = arguments.length >= 1;
    if (isSet) {
      array.push(element)

alejandrolechuga

// Notes from funfunfunction videos
/*
Functional programming
According to the video FP should improve your code, less time and more understandable, in javascript functions are values 
*/
// functions can be assigned to variables
var triple = function (x) {
  return x * 3;
}
var waffle  = triple;

alejandrolechuga

function getWatchers(root) {
  root = angular.element(root || document.documentElement);
  var watcherCount = 0;
 
  function getElemWatchers(element) {
    var isolateWatchers = getWatchersFromScope(element.data().$isolateScope);
    var scopeWatchers = getWatchersFromScope(element.data().$scope);
    var watchers = scopeWatchers.concat(isolateWatchers);
    angular.forEach(element.children(), function (childElement) {
      watchers = watchers.concat(getElemWatchers(angular.element(childElement)));

alejandrolechuga

var Observable = Rx.Observable; 
var button = document.getElementById('button');
var clicks = Observable.fromEvent(button, 'click');

clicks.forEach(function( ){
   console.log('click')
});

// dispose 
var Observable = Rx.Observable; 

alejandrolechuga

function injector (objects) {
  
  function functionArgsName(fn) { 
     var fragment;
     fn = fn.toString();
     //remove comments 
     fn = fn.replace(/(\/\*([\s\S]*?)\*\/)|(\/\/(.*)$)/gm,"");
     fragment = fn.match(/function\s*\w*\s*\((.*?)\)/)[1];
     if (!/^[\s]*$/g.test(fragment)) {
       return fragment.replace(/(\s)/g,"").split(",");