Convert an array of integers into an array of strings in Ruby?
RubyRuby Problem Overview
I have an array:
int_array = [11,12]
I need to convert it into
str_array = ['11','12']
I'm new to this technology
Ruby Solutions
Solution 1 - Ruby
str_array = int_array.map(&:to_s)
Solution 2 - Ruby
str_array = int_array.collect{|i| i.to_s}
Solution 3 - Ruby
array.map(&:to_s) => array of integers into an array of strings
array.map(&:to_i) => array of strings into an array of integers
Solution 4 - Ruby
map and collect functions will work the same here.
int_array = [1, 2, 3]
str_array = int_array.map { |i| i.to_s }
=> str_array = ['1', '2', '3']
You can acheive this with one line:
array = [1, 2, 3]
array.map! { |i| i.to_s }
and you can use a really cool shortcut for proc: (https://stackoverflow.com/a/1961118/2257912)
array = [1, 2, 3]
array.map!(&:to_s)
Solution 5 - Ruby
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?
Solution 6 - Ruby
the shortest option:
int_array.map!(&:to_s)
Solution 7 - Ruby
Returns Int
x = [1,2,3,4,5,6,7,8,9,10] # => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Returns String
y = 1,2,3,4,5 # => ["1", "2", "3", "4", "5"]