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

To change the array in place

array.map!{|x|x ?x:0}

If the array can contain false you'll need to use this instead

array.map!{|x|x.nil? ? 0:x}