Assign to an array and replace emerged nil values

Question

Greetings!

When assigning a value to an array as in the following, how could I replace the nils by 0?

array = [1,2,3]
array         


        

Answer 1

Another approach would be to define your own function for adding a value to the array.

class Array
  def addpad(index,newval)
    concat(Array.new(index-size,0)) if index > size
    self[index] = newval
  end
end

a = [1,2,3]
a.addpad(10,2)
a => [1,2,3,0,0,0,0,0,0,0,2]