deivinsontejeda

Ruby Learning Links

Tutorials

• https://github.com/thoughtbot/trail-map
• http://tutorials.jumpstartlab.com/
• http://ruby.learncodethehardway.org/
• http://rubykoans.com/
• http://rubymonk.com/
• http://tryruby.org/
• http://www.jasimabasheer.com/posts/meta_introduction_to_ruby.html* http://railsforzombies.org/

deivinsontejeda

# delay the GC - usage as below

# Spec::Runner.configure do |config|
    .....
  
#   config.before(:each) do
#     begin_gc_deferment
#   end

#   config.after(:each) do

deivinsontejeda

require 'json'

class JsonFormatter
  METHODS = %w[start close stop start_dump dump_pending dump_failures dump_summary]
  METHODS.each { |m| define_method(m) { |*a| } }

  def initialize(out)
    @output    = out
    @event_id  = 0
    @passed    = true

deivinsontejeda

class SimpleLinearRegression
  def initialize(xs, ys)
    @xs, @ys = xs, ys
    if @xs.length != @ys.length
      raise "Unbalanced data. xs need to be same length as ys"
    end
  end

  def y_intercept
    mean(@ys) - (slope * mean(@xs))

deivinsontejeda

class TestDSL < Regexp
  def initialize(&block)
    instance_eval &block
    super('/some_regex/')
  end
  def some_method(value)
    puts "Output: #{value}"
  end
end

deivinsontejeda

Constatize a string without ActiveSupport (commonly come by default in rails) isn't friendly and in some case include AS is overkill. So, with this snipe you can constatize a String.

require 'net/http'
cls = "Net::HTTP".split('::').inject(Object) { |host,name| memo.const_get(name) }

# now you can use cls like normal constant
cls.new

deivinsontejeda

---
:verbose: false
install: --no-document --env-shebang
:sources:
- https://rubygems.org
:benchmark: false
:backtrace: false
update: --no-document --env-shebang
:update_sources: true

deivinsontejeda

require 'irb/completion'
ARGV.concat [ "--readline", "--prompt-mode", "simple" ]
IRB.conf[:EVAL_HISTORY] = 1000
IRB.conf[:SAVE_HISTORY] = 1000
IRB.conf[:HISTORY_FILE] = File::expand_path("~/.irbhistory")
#begin
#  require 'pry'
#  Pry.start
#rescue LoadError
#  puts "you need run 'gem install pry'"

deivinsontejeda

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

deivinsontejeda

package main

import (
	"fmt"
)

const (
	GOROTUNIES = 2
)