Convert an array of integers into an array of strings in Ruby?

Question

I have an array:

int_array = [11,12]

I need to convert it into

str_array = ['11','12']

I'm new to this technology

Answer 1

str_array = int_array.map(&:to_s)

Answer 2

str_array = int_array.collect{|i| i.to_s}

Answer 3

Start up irb

irb(main):001:0> int_array = [11,12]
=> [11, 12]
irb(main):002:0> str_array = int_array.collect{|i| i.to_s}
=> ["11", "12"]

Your problem is probably somewhere else. Perhaps a scope confusion?