hallettj

// It is important to declare your variables.

(function() {
    var foo = 'Hello, world!';
    print(foo);  //=> Hello, world!
})();

// Because if you don't, the become global variables.

(function() {

jcxplorer

function uuid() {
  var uuid = "", i, random;
  for (i = 0; i < 32; i++) {
    random = Math.random() * 16 | 0;

    if (i == 8 || i == 12 || i == 16 || i == 20) {
      uuid += "-"
    }
    uuid += (i == 12 ? 4 : (i == 16 ? (random & 3 | 8) : random)).toString(16);
  }

ShirtlessKirk

/**
 * Luhn algorithm in JavaScript: validate credit card number supplied as string of numbers
 * @author ShirtlessKirk. Copyright (c) 2012.
 * @license WTFPL (http://www.wtfpl.net/txt/copying)
 */
var luhnChk = (function (arr) {
    return function (ccNum) {
        var 
            len = ccNum.length,
            bit = 1,

tanepiper

var HighResolutionTimer = window.HighResolutionTimer = window.HighResolutionTimer || (function() {

  var HighResolutionTimer = function(options) {
    this.timer = false;

    this.total_ticks = 0;

    this.start_time = undefined;
    this.current_time = undefined;

alanhamlett

$.ajaxSetup({
    beforeSend: function(xhr, settings) {
        if (settings.type == 'POST' || settings.type == 'PUT' || settings.type == 'DELETE') {
            function getCookie(name) {
                var cookieValue = null;
                if (document.cookie && document.cookie != '') {
                    var cookies = document.cookie.split(';');
                    for (var i = 0; i < cookies.length; i++) {
                        var cookie = jQuery.trim(cookies[i]);
                        // Does this cookie string begin with the name we want?

dlutwuwei

title: express4.2源码解析 date: 2014-05-18 15:00:50 categories: express tags: [nodejs, node, js, express]

express是nodejs平台上一个非常流行的框架，4.2.0是最新的版本，相比3.x版本优化了代码和api，去除了connect模块，自己实现了一个router组件，实现http请求的顺序流程处理，去除了很多绑定的中间件，使代码更清晰。

##1.使用express 如何使用express在官网有很好的讲解，只用experssjs实例app的几个函数，就可以构建构建web程序。

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.

---

zancas

Intro

This is a comparison of packaging with python vs with npm.

TLDR

Python packaging is 3x as complex as javascript packaging. See the conclusion for more detail (but less than the whole document).

Categories examined:

• [script creation](script creation)
• [conversion to a package](conversion to a package)

gaearon

function mapValues(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    result[key] = fn(obj[key], key);
    return result;
  }, {});
}

function pick(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    if (fn(obj[key])) {

markerikson

class ParentComponent extends Component {
    constructor() {
        super();
        
        this.state = {
            data : [
                {id : 1, date : "2014-04-18", total : 121.0, status : "Shipped", name : "A", points: 5, percent : 50},
                {id : 2, date : "2014-04-21", total : 121.0, status : "Not Shipped", name : "B", points: 10, percent: 60},
                {id : 3, date : "2014-08-09", total : 121.0, status : "Not Shipped", name : "C", points: 15, percent: 70},
                {id : 4, date : "2014-04-24", total : 121.0, status : "Shipped", name : "D", points: 20, percent : 80},