I built this method to find the longest word in an array, but I'm wondering if there's a better way to have done it. I'm pretty new to Ruby, and just did this as an exercise for learning the inject
method.
It returns either the longest word in an array, or an array of the equal longest words.
class Array
def longest_word
# Convert array elements to strings in the event that they're not.
test_array = self.collect { |e| e.to_s }
test_array.inject() do |word, comparison|
if word.kind_of?(Array) then
if word[0].length == comparison.length then
word << comparison
else
word[0].length > comparison.length ? word : comparison
end
else
# If words are equal, they are pushed into an array
if word.length == comparison.length then
the_words = Array.new
the_words << word
the_words << comparison
else
word.length > comparison.length ? word : comparison
end
end
end
end
end
I would do
class Array
def longest_word
group_by(&:size).max.last
end
end