Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/asciidoc-bib/extensions.rb

Overview

Two methods are added to extend the Array class.

Instance Method Summary collapse

Instance Method Details

#comma_and_join ⇒ Object

Join items in array using commas and ‘and’ on last item



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# File 'lib/asciidoc-bib/extensions.rb', line 12

def comma_and_join
  if size < 2
    return self.join("")
  end
  result = "".dup
  self.each_with_index do |item, index|
    if index.zero?
      result << item
    elsif index == size-1
      result << " and #{item}"
    else
      result << ", #{item}"
    end
  end

  return result
end

#third ⇒ Object

Retrieve the third item of an array Note: no checks for validity



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# File 'lib/asciidoc-bib/extensions.rb', line 7

def third
  self[2]
end