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@rklemme
rklemme / pipes.rb
Last active September 9, 2016 14:14
Execute multiple commands connected through pipes either via threads or processes.
#!/usr/bin/ruby -w
if ENV['DEBUG']
def debug(message)
$stderr.puts message
end
else
def debug(message)
# nop
end
@certainty
certainty / gist:9172432
Created February 23, 2014 14:54
cons = ->(x,y){ ->(a){ a.(x,y) } }
car = ->(c){ c.(->(x,_){ x }) }
cdr = ->(c){ c.(->(_,y){ y }) }
pair = cons.(1,2)
puts car.(pair)
puts cdr.(pair)
@matheusoliveira
matheusoliveira / json_manipulator.sql
Last active February 17, 2024 15:14
Simple PostgreSQL functions to manipulate json objects. (Note: performance is not a concern for those functions)
CREATE OR REPLACE FUNCTION public.json_append(data json, insert_data json)
RETURNS json
IMMUTABLE
LANGUAGE sql
AS $$
SELECT ('{'||string_agg(to_json(key)||':'||value, ',')||'}')::json
FROM (
SELECT * FROM json_each(data)
UNION ALL
SELECT * FROM json_each(insert_data)
@kkestell
kkestell / gist:ade30f868bd122707628
Created October 16, 2014 18:01
/*
Basic Usage
===========
Assuming your markup looks like this:
<table id="table" class="table"></table>
<div id="pagination" class="text-center"></div>
@tamouse
tamouse / MOVED.md
Last active August 29, 2015 14:08
My Rails Application Template

This has been moved to a regular Github repo:

@kkestell
kkestell / _README.md
Last active August 29, 2015 14:10

TinyVM

TinyVM is a simple register based virtual machine implemented in C (tinyvm.c). The bytecode assembler is written in Python (tas.py). TinyVM has 4 registers ($0 - $3) and 64k of memory in a 32-bit address space (0x00000000 - 0x0000FFFF).

Each instruction is encoded in a single 64-bit word. Register count and memory are defined at compile time, but due to only having 32 bits available for addressing and 8 bits for registers, allocating more than 4GB of memory or 256 registers is pointless.

The following instructions (loosely based on MIPS) have been implemented:

No.    | Keyword | Instruction                   | Example            | Description

-------|---------|-------------------------------|--------------------|------------

@momer
momer / cassandra_info.md
Last active August 1, 2020 08:59
Apache Cassandra learning resources for beginner, intermediate, and advanced users - this has been posted to my little blog @ http://soryy.com
@Su-Shee
Su-Shee / gist:5d1a417fa9de19c15477
Last active April 12, 2024 11:27
Falsehoods Programmers Believe About "Women In Tech"

Falsehoods Programmers Believe About "Women In Tech"

  • We have absolutely no idea what we're doing in tech. Please explain the utmost basic things to us.

  • We only do web design. Our whole reason of being in tech is to make things pretty. Consider us the doilies of the industry.

  • We're not laughing about your joke, so we clearly need you explain it to us. In great detail.

  • We're only in tech to find a husband, boyfriend or generally to get laid.

@mwlang
mwlang / log.rake
Last active August 29, 2015 14:21
This set of tasks scans a Ruby Logger file and tallies timestamps. It finds first timestamp and last timestamp recorded in the log and prints out start/start times, elapsed time, and the logfile it scanned. Additionally, if you use the Sequel gem and log SQL to the log file, it extracts the SQL, parameterizes those SQLs so we can group 'em and g…
namespace :log do
def timestamp line
values = line.match(/(\d{4})\-(\d{2})\-(\d{2})T(\d{2})\:(\d{2})\:(\d{2}\.\d{6})/).captures
Time.new(*values.map(&:to_f))
end
task :timestamps do
Dir.glob(File.join(log_path, '*.log')).each do |fn|
top = `head -n 2 #{fn}`.split("\n")
top.shift if top[0] =~ /Logfile created/
@marknorgren
marknorgren / angular-2.md
Last active March 28, 2016 22:21
Building Web Apps with Angular 2