Question

I would like to convert a String containing multiple numbers so that all those numbers become Integers. That is, I have:

"1,2,3,4,5,6,7,8,9,0" # String
" 1,  2, 3,  4, 5   , 6 ,7 ,8  ,9  ,  0" # String (spaces are important)

and I would like to have:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 0] # Array

But there is more. If I have:

"1,2,3,4,5,a,b,c,d,e" # String
"  1,  2 , 3   ,  4  ,  5 , a, b,c  , d , e" # String (spaces are important)

I would like to have (value that are not numbers are removed):

[1 , 2 , 3 , 4, 5] # Array

Answer 1

"1,2,3,4,5,a,b,c,d,e".scan(/\d+/).map(&:to_i)