How can I select the longest string from a Ruby array?

Question

However above [duplicate suggestion] is for multidimensional array, not targeting the simpler case I am posing here.

For example if I have:

\'one\',\'two         


        

Answer 1

arr.map(&:length).max     -

Answer 2

You can also use:

['one','two','three','four','five'].inject { |f, s| f.length > s.length ? f : s }

Answer 3

Just do as below using Enumerable#max_by :

ar = ['one','two','three','four','five']
ar.max_by(&:length) # => "three"