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@mikehaertl
mikehaertl / gist:3258427
Created August 4, 2012 15:40
Learn you a Haskell - In a nutshell

Learn you a Haskell - In a nutshell

This is a summary of the "Learn You A Haskell" online book under http://learnyouahaskell.com/chapters.

1. Introduction

  • Haskell is a functional programming language.
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active July 22, 2024 23:19
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
@ndarville
ndarville / business-models.md
Last active January 13, 2024 17:27
Business models based on the compiled list at http://news.ycombinator.com/item?id=4924647. I find the link very hard to browse, so I made a simple version in Markdown instead.

Business Models

Advertising

Models Examples
Display ads Yahoo!
Search ads Google
@willurd
willurd / web-servers.md
Last active July 23, 2024 17:12
Big list of http static server one-liners

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
@boyney123
boyney123 / AngularOdometer.js
Last active July 1, 2021 22:12
odometer.js - Angular Directive Example
//Directive
angularApp.directive('angularOdometer', function () {
return {
restrict: 'A',
link: function(scope, element, attrs) {
//Creates new instance of odometer for the element
new Odometer({el: element[0], value: scope[attrs.odometer]});
//Watch for changes and update the element value (causing odometer to redraw)
@michaelfeathers
michaelfeathers / markvchaney.rb
Created June 28, 2014 23:25
stems = ARGF.read
.split
.each_cons(2)
.group_by { |word_pair| word_pair[0] }
def next_word ary
ary[rand(ary.length).to_i][1]
end
e = Enumerator.new do |e|
@evancz
evancz / Haskell-Style-Guide.md
Last active March 23, 2023 15:27
A style guide for Elm tools

Haskell Style Guide for Elm

Goal: a consistent style throughout all Elm projects that is easy to read and produces clean diffs to make debugging easier. This means valuing regularity and simplicity over cleverness.

Line Length

Keep it under 80 characters. Going over is not the end of the world, but consider refactoring before you decide a line really must be longer.

Variables

@rondy
rondy / Effective_Engineer.md
Last active July 24, 2024 10:58

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

What's an Effective Engineer?

@joyrexus
joyrexus / README.md
Last active February 24, 2024 15:16
collapsible markdown

collapsible markdown?

CLICK ME

yes, even hidden code blocks!

print("hello world!")
@evancz
evancz / cron.md
Last active December 25, 2020 13:18
Cron job to remind myself to stretch

Type crontab -l to see your cron jobs. Type crontab -e to edit them. You have to use Vim apparently.

Add a line like this:

0,30	*	*	*	*	/Users/YOURNAME/Documents/scripts/stretch.sh

That is on every 0th and 30th minute of the hour. Make sure all the separators in there are tabs!