How to split a delimited string in Ruby and convert it to an array?

Question

I have a string

\"1,2,3,4\"

and I\'d like to convert it into an array:

[1,2,3,4]

How?

Answer 1

"1,2,3,4".split(",") as strings

"1,2,3,4".split(",").map { |s| s.to_i } as integers