Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/powerpack/array/butlast.rb,
lib/powerpack/array/butfirst.rb

Instance Method Summary collapse

Instance Method Details

#butfirst ⇒ Array

Returns a new array rejecting the current one’s first element.

Examples:

[1, 2, 3].butfirst #=> [2, 3]
[].butfirst #=> nil

Returns:

  • (Array) —

    a new array without the first element or nil if this array is empty



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# File 'lib/powerpack/array/butfirst.rb', line 11

def butfirst
  self[1..-1]
end

#butlast ⇒ Array

Returns a new array that has all the elements of the current but the last.

Examples:

[1, 2, 3].butlast #=> [1, 2]
[].butlast #=> []

Returns:

  • (Array) —

    a new array without the last element or an empty array if this array is empty



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# File 'lib/powerpack/array/butlast.rb', line 11

def butlast
  self[0...-1]
end