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

There is no built-in function to replace nil in an array, so yes, map is the way to go. If a shorter version would make you happier, you could do:

array.map {|e| e ? e : 0}