aghyad

Keybase proof

I hereby claim:

• I am aghyad on github.
• I am aghyad (https://keybase.io/aghyad) on keybase.
• I have a public key ASAuvxwdUY3Su8rEXMVfGJKmkTO4NzSkICq5lAqzG4Jz3Qo

To claim this, I am signing this object:

aghyad

Any mistakes are my own. Basecamp is a modern software company that (by many estimates) generates millions of dollars in profit each month.

Promise not to promise

Since the beginning of Basecamp, we've been loath to make promises about future product improvements. We've always wanted customers to judge the product they could buy and use today, not some imaginary version that might exist in the future.

The wrong time for real-time

Chat puts conversations on conveyor belts that are perpetually moving away from you. If you're not at your station when the conversation rolls by, you'll never get a chance to put in your two cents. This means if you want to have your say, you need to be paying attention all day (and often to multiple rooms/channels). ... Chat is great for hashing stuff our quickly when speed truly is important. ... It's also great for watercooler-like banter ... building a camaraderie among people during gaps in the workday.

aghyad

Blogs

• Understanding Elixir Macros, Part 1 by Saša Jurić (more: Part 2 Part 3 Part 4 Part 5 Part 6)

Books

• Metaprogramming Elixir by Chris McCord

Official Documentation

aghyad

Community

• Elixir Slack Group

Cheatsheets

• GenServer Cheatsheet by Benjamin Tan Wei Hao

Books

aghyad

string_t = None

def get_rstring(addr):
  s = addr.cast(string_t.pointer())
  if s['basic']['flags'] & (1 << 13):
    return s['as']['heap']['ptr'].string()
  else:
    return s['as']['ary'].string()

def get_lineno(iseq, pos):

aghyad

#!/usr/bin/env ruby
#require 'rubygems'
#require 'pry'
#require 'pp'

# This scripts returns a list of MAC addresses.
# Usage:
# ./$0 LIMIT START END
# ./genmac.rb 5 00:50:56:00:00:00 00:50:56:3F:FF:FF
#

aghyad

##  Like a Symbol#to_proc but for array
class Array
  def to_proc
    lambda {|object| 
      self.map{|symbol| object.send(symbol.to_sym)}
    }
  end
end

aghyad

"&&" and "||" in ruby statements (not if-stmts):

stmt1 && stmt2
returns the first falsey result, or if no falsey's found, returns the last truthy result
ex:
'hello' && 'bye'
=> 'bye'
'hello' && false
=> false
false && 'hello'

aghyad

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

aghyad

# MySQL.  Versions 4.1 and 5.0 are recommended.
#
# Install the MySQL driver:
#   gem install mysql2
#
# And be sure to use new-style password hashing:
#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
  adapter: mysql2
  encoding: utf8