Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/array.rb

Instance Method Summary collapse

Instance Method Details

#dimension ⇒ Object 



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# File 'lib/array.rb', line 2

def dimension
  a = self
  return 0 if a.class != Array
  result = 1
  a.each do |sub_a|
    if sub_a.class == Array
      dim = sub_a.dimension
      result = dim + 1 if dim + 1 > result
    end
  end
  return result
end

#inject_dim(int) ⇒ Object 



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# File 'lib/array.rb', line 25

def inject_dim(int)
  arr = self
  int.times do
    arr << []
  end
  arr
end

#insert_at(position_arr, value) ⇒ Object 



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# File 'lib/array.rb', line 50

def insert_at(position_arr, value)
  arr = self
  if position_arr.size == 1
    arr[position_arr[0]] = value
    return(arr)
  else
    arr[position_arr[0]].insert_at(position_arr[1..-1], value)
  end
end

#matrix(int_arr, current_arr = []) ⇒ Object 



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# File 'lib/array.rb', line 33

def matrix(int_arr, current_arr=[])   
  int = int_arr[0]
  new_int_arr = int_arr[1..-1]
  if int_arr.empty?
    return(current_arr)
  else
    if current_arr.empty?
      new_arr = current_arr.inject_dim(int)
      self.matrix(new_int_arr, new_arr)
    else
      current_arr.each do |arr|
        arr.matrix(int_arr, arr)
      end
    end
  end
end

#values_at_a(indices, current_array = self) ⇒ Object 



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# File 'lib/array.rb', line 15

def values_at_a(indices, current_array=self)
  #in: self = [3,4,[6,5,[3,4]],3], indices = [2,2,0]
  #out: 3
  if indices.size == 1
    return(current_array[indices[0]])
  else
    values_at_a(indices[1..-1], current_array[indices[0]])
  end
end