jonahglover

PHP semantics

Motivation

PHP is usually included in the top five or six most popular programming languages, as measured by various metrics implemented by e.g. [Tiobe][], [LangPop][], [PYPL][], [lang-index][]. Alongside it sit C, Java, Obj-C, C++, C#, Javascript, and Python. All of these have a formal semantics or at least a rigorous specification.

jonahglover

PHP semantics

Motivation

PHP is usually included in the top five or six most popular programming languages, as measured by various metrics implemented by e.g. [Tiobe][], [LangPop][], [PYPL][], [lang-index][]. Alongside it sit C, Java, Obj-C, C++, C#, Javascript, and Python. All of these have a formal semantics or at least a rigorous specification.

jonahglover

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

jonahglover

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

jonahglover

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

jonahglover

def unique_open_rate
    recipient_activities = recipient_messages.joins(:activities)
    ((recipient_activities.where("activities.activity_type = 'open'").distinct.count.to_f / recicipient_messages.count) * 100).round(2)
end

query 

user.messages.select("messages.*,
            COUNT(DISTINCT recicipient_messages.id) recipient_count,
            COUNT(DISTINCT activities.id) total_activities,

jonahglover

package main

import (
   "encoding/json"
   "fmt"
   "io/ioutil"
)

/*
sample json

jonahglover

The Case For Go

• Iron.io: How We Went from 30 Servers to 2 with Go
• Go at Google: Language Design in the Service of Software Engineering
• Behind the Scenes: Big Data at Torbit
• pool.ntp.org DNS server in Go
• Juju at Canonical
• Go at bitly
• NSQ: realtime distributed message processing at scale