jashkenas

# MAC manipulators
alias random_mac='sudo ifconfig en0 ether `openssl rand -hex 6 | sed "s/\(..\)/\1:/g; s/.$//"`'
alias restore_mac='sudo ifconfig en0 ether YOUR_ORIGINAL_MAC_ADDRESS_GOES_HERE'

isaacs

var cluster = require('cluster');
var PORT = +process.env.PORT || 1337;

if (cluster.isMaster) {
  // In real life, you'd probably use more than just 2 workers,
  // and perhaps not put the master and worker in the same file.
  cluster.fork();
  cluster.fork();

  cluster.on('disconnect', function(worker) {

afair

Curl Reference

Use the curl command line tool from your terminal window to access web pages, resources, and API's. This swiss-army knife of the internet also supports many more protocols and tools.

Command format

curl [options] URL

The complete, offical reference page is here.

aseemk

javascript:(function(){[].forEach.call(document.querySelectorAll('.discussion-item-toggle-closed'), (elmt) => elmt.click())})();

chuckg

Splunk Recipes for Heroku

A collection of Splunk recipes for Heroku logs. Instructions for setting up Splunk Storm with Heroku can be found here. For the vast majority of these recipes you'll need to have enabled the Heroku labs feature, log-runtime-metrics, for your application.

tj

function params(fn) {
  var str = fn.toString();
  var sig = str.match(/\(([^)]*)\)/)[1];
  if (!sig) return [];
  return sig.split(', ');
}

console.api = function(obj){
  console.log();
  var proto = Object.getPrototypeOf(obj);

aseemk

#!/usr/bin/env _coffee
#
# Helper script to search all of our files for i18n strings and update our
# strings file. Helpful in case we missed a code path during testing.
#
# Specifically, searches for gettext `__()` calls in our checked-in files.
#

$ = require 'underscore'
echo = console.log

tjmcewan

Run these once to setup git options:

git config --global push.default current
git config --global merge.defaultToUpstream true
git config --global branch.autosetupmerge true
git config --global branch.autosetuprebase remote
git config --global alias.cb 'checkout -b'
git config --global alias.ps 'push -u'
git config --global alias.pl '!git fetch -p && git rebase'

Use them like this:

jbenet

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

aseemk

CoffeeScript 1.7 is shaping up to be a pretty kick-ass release with significant improvements. Here are the ones I'm most excited about, in order of my own excitement.

Parentheses-free chaining

jashkenas/coffeescript#3263

Years of being wished for, finally granted!