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inputs = %w[
  CollectionSelectInput
  DateTimeInput
  FileInput
  GroupedCollectionSelectInput
  NumericInput
  PasswordInput
  RangeInput
  StringInput
  TextInput

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h = {}
h[:a]
h.default = 0
h[:a] += 1
h = Hash.new(0)

require 'active_support/core_ext/hash/indifferent_access'
h = {"a" => 1, "b" => 2}
h.symbolize_keys
h.with_indifferent_access[:a]

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def print3(a,b,c)
  puts "a: #{a}, b: #{b}, c:#{c}"
end

a = [1,2,3]
b = Array.new(3, 1)
c = Array.new(3) {|i| i*2}

print3(*a)

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# This file is an implementation of multi-level statistics.

# Value object. It can be created basing on SQL output.
SingleSubmissionStats = 
  Struct.new(:shift, :retreat_type, 
						 :retreat_level, :retreat_type_and_level_id, 
						 :gender, :reserve, :status, :count)

# Vlass responsible for calculating various staatistics.
# It contains a stats array that can consist of SingleSubmissionStats

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# This file contains shared examples that helps testing classes that has 
# finder methods (e.g. ActiveRecord model classes).
#
# It accepts :expected, :others and :results params
# passed with let blocks:
# 
# it_behaves_like :finder do
#   let(:results) { ... }
#   let(:expected) { ... }
#   let(:others) { ... }

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> user.devices.all.uniq.class
=> Device::ActiveRecord_AssociationRelation
# so that we can chain more AR methods
> user.devices.all.uniq.limit(1)
=> [Device]

> u.devices.uniq.class
=> Array
# so we can only work on array:
> user.devices.uniq.limit(1)

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$ pry
[1] pry(main)> require "roo"
=> true
[2] pry(main)> require "roo/version"
=> true
[3] pry(main)> Roo::VERSION
=> "2.7.1"
[4] pry(main)> sheet = Roo::Spreadsheet.open("roo-percents-as-strings.xlsx", extension: "xlsx")
=> <#Roo::Excelx:1257514717731600 @tmpdir @shared @filename @sheet_files @sheet_names @sheets @sheets_by_name @options @cell @cell_type @cells_read @first_row @last_row @first_column @last_column @header_line> 
[5] pry(main)> sheet.formatted_value('A', 1)

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require "benchmark/ips"

PART = <<TEXT
A text with 123,21231,231,23d a number: 12,212,234,12
Other 12 43 123,21231,22,22,2,33d Some other 9012,123123 12
TEXT
TEXT = PART * 100

POSSESSIVE = /(\d++,?)++/
LAZY = /(\d+?,?)+?/

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unrolling:     1299.0 i/s
possessive:    1146.9 i/s - same-ish: difference falls within error
   greedy:       63.4 i/s - 20.48x  slower
     lazy:       61.8 i/s - 21.03x  slower

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# arrays
result = []

# initial data
values = arrays.map{|a| a.next}


while true
  maximal_value = values.max
  for i 0...values.size do