mrzasa

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)

mrzasa

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]

mrzasa

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