Method: Indexable#middle

Defined in:
lib/core/facets/indexable.rb

#middle(birth = 0) ⇒ Object

Returns an Array of the middle element(s) of an array. Even-sized arrays, not having an exact middle, return a two-element array of the two middle elements.

[1,2,3,4,5].middle        #=> [3]
[1,2,3,4,5,6].middle      #=> [3,4]

A birth can be give to widen the middle on either side.

[1,2,3,4,5].middle(1)   #=> [2,3,4]
[1,2,3,4,5,6].middle(1)   #=> [2,3,4,5]

In contrast to #mid which utilizes an offset.



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# File 'lib/core/facets/indexable.rb', line 97

def middle(birth=0)
  i = size / 2 - birth
  if size % 2 == 0
    slice(i - 1, 2 + (2 * birth))
  else
    slice(i, 1 + (2 * birth))
  end
end