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@JosephPecoraro
JosephPecoraro / shell-execution.rb
Last active September 10, 2023 10:12
Shell Execution in Ruby
# Ways to execute a shell script in Ruby
# Example Script - Joseph Pecoraro
cmd = "echo 'hi'" # Sample string that can be used
# 1. Kernel#` - commonly called backticks - `cmd`
# This is like many other languages, including bash, PHP, and Perl
# Synchronous (blocking)
# Returns the output of the shell command
# Docs: http://ruby-doc.org/core/classes/Kernel.html#M001111
@daddz
daddz / file_queue.rb
Created April 1, 2010 23:23
a ruby queue based on a file
class FileQueue
def initialize(file_name)
@file_name = file_name
end
def push(obj)
safe_open('a') do |file|
file.write(obj + "\n")
end
# YUI 3 Cookbook Table of Contents
## YUI BASICS
### Put YUI on the Page
* Load YUI
* Load debug builds
* Load locally hosted builds
* Load a YUI 2 widget
@juliocesar
juliocesar / best-localStorage-polyfill-evar.js
Created April 18, 2011 23:19
This is the best localStorage polyfill in the world
// I mean, seriously, localStorage is supported even by your mum. How about instead of
// casing the feature out, you give users in-memory (stale) storage instead?
// If they close your application, they deserve to lose data anyway.
// if (!('localStorage' in window)) {
if (!Modernizr.localstorage) {
window.localStorage = {
_data : {},
setItem : function(id, val) { return this._data[id] = String(val); },
getItem : function(id) { return this._data.hasOwnProperty(id) ? this._data[id] : undefined; },
@proofek
proofek / pre-receive
Created June 2, 2011 14:21
pre-receive git hook to run php linter
#!/usr/bin/php
<?php
echo "\nRunning php linter...\n";
$params = explode(' ', file_get_contents('php://stdin'));
$ref = trim($params[1]);
$diff = array();
$return = 0;
@jimbojsb
jimbojsb / gist:1630790
Created January 18, 2012 03:52
Code highlighting for Keynote presentations

Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

Step 2:

@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@justinbmeyer
justinbmeyer / handlebars.md
Created June 14, 2012 06:35
Why do you like Handlebars (and concerns about live-binding)

I'm considering adding an alternative to CanJS's EJS live-binding system. I really like EJS, it's extremely powerful, but ugly to look at. So, I'm trying to create a better mouse-trap.

Currently, the most popular mouse-trap seems to be Handlebars. What do you like about it?

  • Syntax, or
  • Prepared data

Syntax

Handlebars uses {{}} for insertion and {{#}} and {{/}} for widgets and control structures.

@briancavalier
briancavalier / promise-monad-proof.js
Created August 8, 2012 15:57
A proof that Promises/A is a Monad
//-------------------------------------------------------------
//
// Hypothesis:
//
// Promises/A is a Monad
//
// To be a Monad, it must provide at least:
// - A unit (aka return or mreturn) operation that creates a corresponding
// monadic value from a non-monadic value.
// - A bind operation that applies a function to a monadic value
@domenic
domenic / promises.md
Last active March 31, 2024 14:07
You're Missing the Point of Promises

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.