Class: Array

Inherits:
Object show all
Defined in:
lib/lab419/core/array/flatten_once.rb,
lib/lab419/core/array/without_indices.rb

Instance Method Summary collapse

Instance Method Details

#flatten_once ⇒ Object 



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# File 'lib/lab419/core/array/flatten_once.rb', line 2

def flatten_once
  inject([]){ |a,e| [*a] + [*e] }
end

#without_indices(*indices) ⇒ Object 



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# File 'lib/lab419/core/array/without_indices.rb', line 2

def without_indices *indices
  s = size
  indices = indices.map{ |x| x < 0 ? s + x : x }.uniq.reject{ |x| x >=s || x < 0 }.sort
  return dup if indices.empty?
  prefix =
    indices.inject [[],0] do |(a, li), i|
      [ a + (self[li, [i-li,0].max] || []), i.succ ]
     end.first 
     
  prefix + ( self[indices.last.succ..-1] || [] )
end