monsur

/**
 * XmlHttpRequest's getAllResponseHeaders() method returns a string of response
 * headers according to the format described here:
 * http://www.w3.org/TR/XMLHttpRequest/#the-getallresponseheaders-method
 * This method parses that string into a user-friendly key/value pair object.
 */
function parseResponseHeaders(headerStr) {
  var headers = {};
  if (!headerStr) {
    return headers;

lsmith

// Note o must be a DOM/COM object for IE8 to work.  See below for a feature test for that.
var _define = (Object.defineProperty) ? 
    function (o, prop, fn) {
        function val(v) {
            var ret = (arguments.length) ? v : fn.call(this);

            // delete needed for IE8
            delete o[prop];
            Object.defineProperty(o, prop, {
                value: ret,

csanz

function encrypt(text){
  var cipher = crypto.createCipher('aes-256-cbc','d6F3Efeq')
  var crypted = cipher.update(text,'utf8','hex')
  crypted += cipher.final('hex');
  return crypted;
}

function decrypt(text){
  var decipher = crypto.createDecipher('aes-256-cbc','d6F3Efeq')
  var dec = decipher.update(text,'hex','utf8')

chrisroos

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...

jonathantneal

this.Element && function(ElementPrototype) {
	ElementPrototype.matchesSelector = ElementPrototype.matchesSelector || 
	ElementPrototype.mozMatchesSelector ||
	ElementPrototype.msMatchesSelector ||
	ElementPrototype.oMatchesSelector ||
	ElementPrototype.webkitMatchesSelector ||
	function (selector) {
		var node = this, nodes = (node.parentNode || node.document).querySelectorAll(selector), i = -1;

		while (nodes[++i] && nodes[i] != node);

dherman

Notational Conventions

This section describes the conventions used here to describe type signatures.

A [T] is an array-like value (only ever used read-only in this API), i.e., one with an integer length and whose indexed properties from 0 to length - 1 are of type T.

A type T? should be read as T | undefined -- that is, an optional value that may be undefined.

Loaders

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.

---

rotty3000

Hate Checked Exceptions???

Try this little trick borrowed from Netty.

So you have an exception:

• you don't want to check
• you don't want to swallow
• you don't want to pollute the method signature

Consider the following class Throw:

henvic

#!/bin/bash
TITLE="Project Name"
REPORT_DIR="reports/complexity"
FILES="lib test bin tasks gulpfile.js"

BACK=$1
JSHINTRC=$2
OFFSET=$3
STEPS=$4

brycebaril

@mafintosh asks: "Does anyone have a good code example of when to use setImmediate instead of nextTick?"

https://twitter.com/mafintosh/status/624590818125352960

The answer is "generally anywhere outside of core".

process.nextTick is barely asynchronous. Flow-wise it is asynchronous, but it will trigger before any other asynchronous events can (timers, io, etc.) and thus can starve the event loop.

In this script I show a starved event loop where I just synchronously block, use nextTick and setImmediate