quiver

{
   "Version": "2012-10-17",
   "Statement": [
      {
         "Effect": "Allow",
         "Action": [
             "rds-db:connect"
         ],
         "Resource": [
             "arn:aws:rds-db:region:account-id:dbuser:dbi-resource-id/database-user-name"

buggymcbugfix

Catch-all considered harmful?

I have been thinking about a potential source of bugs from catch-all pattern matches and would like to know your thoughts.

Motivation

Totality is usually a desirable property of a function and the catch-all can conveniently buy us totality. But at what price?

I have been indoctrinated that rigour goes above convenience (think along the lines of: "Once we indulge in the impurities of I/O, there is no redemption.")

I would like to evaluate the trade-offs between convenience for the programmer and a potential source of bugs.

seansullivan

const AWS = require('aws-sdk');
AWS.config.setPromisesDependency(require('Q').Promise);

const _ = require('lodash');
const moment = require('moment');

const kinesis = new AWS.Kinesis({region: 'us-east-1'});

const streamName = 'my-stream';

garybernhardt

This document has moved!

It's now here, in The Programmer's Compendium. The content is the same as before, but being part of the compendium means that it's actively maintained.

Startouf

// Google Analytics code to work with Turbolniks 5

this.GoogleAnalytics = (function() {
  function GoogleAnalytics() {}

  GoogleAnalytics.load = function() {
    var firstScript, ga;
    window._gaq = [];
    window._gaq.push(["_setAccount", GoogleAnalytics.analyticsId()]);
    window._gaq.push(['_setAllowAnchor', true]);

kevinelliott

Mac OS X 10.11 El Capitan

Custom recipe to get OS X 10.11 El Capitan running from scratch, setup applications and developer environment. This is very similar (and currently mostly the same) as my 10.10 Yosemite setup recipe (as found on this gist https://gist.github.com/kevinelliott/0726211d17020a6abc1f). Note that I expect this to change significantly as I install El Capitan several times.

I use this gist to keep track of the important software and steps required to have a functioning system after a semi-annual fresh install. On average, I reinstall each computer from scratch every 6 months, and I do not perform upgrades between distros.

This keeps the system performing at top speeds, clean of trojans, spyware, and ensures that I maintain good organizational practices for my content and backups. I highly recommend this.

You are encouraged to fork this and modify it to your heart's content to match your own needs.

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])) {

jacksonrayhamilton

(custom-theme-set-faces
 'ample
 '(context-coloring-level-0-face ((t :foreground "#bdbdb3")))
 '(context-coloring-level-1-face ((t :foreground "#baba36")))
 '(context-coloring-level-2-face ((t :foreground "#6aaf50")))
 '(context-coloring-level-3-face ((t :foreground "#5180b3")))
 '(context-coloring-level-4-face ((t :foreground "#ab75c3")))
 '(context-coloring-level-5-face ((t :foreground "#cd7542")))
 '(context-coloring-level-6-face ((t :foreground "#df9522")))
 '(context-coloring-level-7-face ((t :foreground "#454545"))))

garybernhardt

# Has your OS/FS/disk lost your data?

# cd to the directory containing your project repositories and run the command
# below. (It's long; make sure you get it all.) It finds all of your git repos
# and runs paranoid fscks in them to check their integrity.

(set -e && find . -type d -and -iname '.git' | while read p; do (cd "$(dirname "$p")" && (set -x && git fsck --full --strict)); done) && echo "OK"

# I have 81 git repos in my ~/proj directory and had no errors.

costa

require 'digest/md5'

hash = {}

Dir.glob("**/*", File::FNM_DOTMATCH).each do |filename|
  next if File.directory?(filename)
  # puts 'Checking ' + filename

  key = Digest::MD5.hexdigest(IO.read(filename)).to_sym
  if hash.has_key? key