jasdeepkhalsa

var arr = [1,1,2];
var arr = arr.filter(function (v, i, a) { return a.indexOf (v) == i }); // dedupe array

eranation

//equivalent of "select count (distinct fieldName) from someTable"
db.someCollection.aggregate([{ $group: { _id: "$fieldName"}  },{ $group: { _id: 1, count: { $sum: 1 } } } ])

ravisorg

<?php

/**
 * Uses the data from unicode.org's emoji-data.txt to build a PHP compatible Regular Expression
 * along the lines of:
 * (?:\p{Emoji_Modifier_Base}\p{Emoji_Modifier}?|\p{Emoji_Presentation}|\p{Emoji}\x{FE0F}?)
 *
 * To use: php build-hashtag-regexp.php <emoji-data.txt>
 * Output will be the generated regular expression.
 *

dalethedeveloper

#Mobile Device Detection via User Agent RegEx

Yes, it is nearly 2012 and this exercise has been done to death in every imaginable language. For my own purposes I needed to get the majority of non-desktop devices on to a trimmed down, mobile optimized version of a site. I decided to try and chase down an up-to-date RegEx of the simplest thing that could possibly work.

I arrived at my current solution after analyzing 12 months of traffic over 30+ US based entertainment properties (5.8M+ visitors) from Jan - Dec 2011.

The numbers solidified my thoughts on the irrelevancy of including browsers/OSes such as Nokia, Samsung, Maemo, Symbian, Ipaq, Avant, Zino, Bolt, Iris, etc. The brass tacks of the matter is that you certainly could support these obscure beasts, but are you really going to test your site on them? Heck, could you even find one?! Unless the folks that pay you are die hard Treo users my guess is "No".

Interestingly enough my research shows that /Mobile/ is more efficient than **/iP(

clarkenheim

//equivalent of MySQL SELECT COUNT(*) AS cnt, fieldName FROM someTable GROUP BY fieldName;
db.someCollection.aggregate([{"$group" : {_id:"$fieldName", cnt:{$sum:1}}}]);

//as above but ordered by the count descending
//eg: SELECT COUNT(*) AS cnt, fieldName FROM someTable GROUP BY fieldName ORDER BY cnt DESC;
db.someCollection.aggregate([{"$group" : {_id:"$fieldName", cnt:{$sum:1}}}, {$sort:{'cnt':-1}}]);

phette23

# put this in your .bash_profile
if [ $ITERM_SESSION_ID ]; then
  export PROMPT_COMMAND='echo -ne "\033];${PWD##*/}\007"; ':"$PROMPT_COMMAND";
fi

# Piece-by-Piece Explanation:
# the if condition makes sure we only screw with $PROMPT_COMMAND if we're in an iTerm environment
# iTerm happens to give each session a unique $ITERM_SESSION_ID we can use, $ITERM_PROFILE is an option too
# the $PROMPT_COMMAND environment variable is executed every time a command is run
# see: ss64.com/bash/syntax-prompt.html

simahawk

# -*- coding: utf-8 -*-
# Inspired by https://github.com/turlando/airhead/blob/master/airhead/broadcaster.py
import click
import os
import shouty
import sys
import logging
logger = logging.getLogger('[broadcaster]')

staringispolite

Puts on glasses:

(•_•)
( •_•)>⌐■-■
(⌐■_■)

Takes off glasses ("mother of god..."):

(⌐■_■)
( •_•)>⌐■-■

clarkenheim

zip_code	dma_code	dma_description
01001	543	SPRINGFIELD - HOLYOKE
01002	543	SPRINGFIELD - HOLYOKE
01003	543	SPRINGFIELD - HOLYOKE
01004	543	SPRINGFIELD - HOLYOKE
01005	506	BOSTON (MANCHESTER)
01007	543	SPRINGFIELD - HOLYOKE
01008	543	SPRINGFIELD - HOLYOKE
01009	543	SPRINGFIELD - HOLYOKE
01010	543	SPRINGFIELD - HOLYOKE

lucasfais

Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt