Sha256: f65e84c4a2702470e52bf3a82b1d25cc2ff71336b07670ede0d26e63155e6aa4

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Versions: 46

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Stored size: 1.13 KB

Contents

class Array
  # Returns the tail of the array from +position+.
  #
  #   %w( a b c d ).from(0)  # => ["a", "b", "c", "d"]
  #   %w( a b c d ).from(2)  # => ["c", "d"]
  #   %w( a b c d ).from(10) # => []
  #   %w().from(0)           # => []
  def from(position)
    self[position, length] || []
  end

  # Returns the beginning of the array up to +position+.
  #
  #   %w( a b c d ).to(0)  # => ["a"]
  #   %w( a b c d ).to(2)  # => ["a", "b", "c"]
  #   %w( a b c d ).to(10) # => ["a", "b", "c", "d"]
  #   %w().to(0)           # => []
  def to(position)
    first position + 1
  end

  # Equal to <tt>self[1]</tt>.
  #
  #   %w( a b c d e ).second # => "b"
  def second
    self[1]
  end

  # Equal to <tt>self[2]</tt>.
  #
  #   %w( a b c d e ).third # => "c"
  def third
    self[2]
  end

  # Equal to <tt>self[3]</tt>.
  #
  #   %w( a b c d e ).fourth # => "d"
  def fourth
    self[3]
  end

  # Equal to <tt>self[4]</tt>.
  #
  #   %w( a b c d e ).fifth # => "e"
  def fifth
    self[4]
  end

  # Equal to <tt>self[41]</tt>. Also known as accessing "the reddit".
  #
  #   (1..42).to_a.forty_two # => 42
  def forty_two
    self[41]
  end
end

Version data entries

46 entries across 46 versions & 4 rubygems

Version Path
activesupport-4.1.1 lib/active_support/core_ext/array/access.rb
activesupport-4.1.0 lib/active_support/core_ext/array/access.rb
activesupport-4.1.0.rc2 lib/active_support/core_ext/array/access.rb
activesupport-4.1.0.rc1 lib/active_support/core_ext/array/access.rb
activesupport-4.1.0.beta2 lib/active_support/core_ext/array/access.rb
activesupport-4.1.0.beta1 lib/active_support/core_ext/array/access.rb