lukego

Simple literate programming.

Add comments to your Erlang file with a special %%% syntax, like this:

%%% This is a comment that will be formatted in a variable width font with Markdown.
%%% You can use *emphasis* and
%%% # Headings
%%% and even
%%%
%%% - Lists

lukego

Simple example of object-oriented programming in Lua. Objects are represented as tables so they are easy to invoke methods on, but their state is kept in a closure where it's convenient for methods to access.

Example of a simple stateful "counter" object with two methods:

module("counter", package.seeall)

function new (count)

lukego

I use this data structure all the time. Can someone leave a comment and tell me what it's called?

1. insert(k,v): add a new value
2. lookup(k): lookup an existing value
3. age(): delete old entries (that have not been used since previous call to age())

# Initialize 'old' and 'new' to empty tables
local old, new = {}, {}

cuixin

-- Using lua to parse CSV file to a table. 
-- Notice: first line must be data description filed. 
-- The separator is '|', change it if you want. 
-- Usage: csv = require('csv') 
--        tab = csv.load('test.csv', ',') 
--        table.foreach(tab[1], print)
--        print(tab[1].you_field)

--encoding=utf-8

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

tylerneylon

-- Two dashes start a one-line comment.

--[[
     Adding two ['s and ]'s makes it a
     multi-line comment.
--]]

----------------------------------------------------
-- 1. Variables and flow control.
----------------------------------------------------

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

joegoggins

# Download the file manually from here https://launchpad.net/gcc-arm-embedded
# Note: `curl` command doesn't work
# I downloaded this one: "gcc-arm-none-eabi-4_7-2013q3-20130916-mac.tar.bz2"

# double click it to unzip it

# Make a place to install it to
mkdir /usr/local/gcc_arm

# Move the unzipped stuff there.

hgfischer

Benchmarking Nginx with Go

There are a lot of ways to serve a Go HTTP application. The best choices depend on each use case. Currently nginx looks to be the standard web server for every new project even though there are other great web servers as well. However, how much is the overhead of serving a Go application behind an nginx server? Do we need some nginx features (vhosts, load balancing, cache, etc) or can you serve directly from Go? If you need nginx, what is the fastest connection mechanism? This are the kind of questions I'm intended to answer here. The purpose of this benchmark is not to tell that Go is faster or slower than nginx. That would be stupid.

So, these are the different settings we are going to compare:

• Go HTTP standalone (as the control group)
• Nginx proxy to Go HTTP
• Nginx fastcgi to Go TCP FastCGI
• Nginx fastcgi to Go Unix Socket FastCGI

gabereiser

var http = require('http')
var server

function onRequest(req, res) {
    console.log('[' + this.name + ']', req.method, req.url)
    res.writeHead(200, {'Content-Type': 'text/plain'})
    res.end('Hello World\n')
}

function onListening() {