Method: BinData::Array#first

Defined in:
lib/bindata/array.rb

#first(n = nil) ⇒ Object

Returns the first element, or the first n elements, of the array. If the array is empty, the first form returns nil, and the second form returns an empty array.



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# File 'lib/bindata/array.rb', line 182

def first(n = nil)
  if n.nil? && empty?
    # explicitly return nil as arrays grow automatically
    nil
  elsif n.nil?
    self[0]
  else
    self[0, n]
  end
end