I am trying to figure out how to get the length of an array's value(index?) For some reason it is returning 1,0,0 and I am clueless why. Can anyone explain what I am doing wrong please? FYI this is from RubyMonk. I am trying to solve it without getting the answer..just need a little boost to figure out what im doing wrong
def length_finder(input_array)
output= []
input_array.length.times do |x|
output << input_array.length[x]
end
return output
end
Shouldn't it be:
output << input_array[x].length
Here you're using the Bit reference method.
Some more Ruby style:
def length_finder(input_array)
input_array.map(&:length)
end
That's very much over complicated and not idiomatic at all. Try this:
def length_finder(input_array)
input_array.map { |x| x.size }
end
That should give you a new array, with the size of each child array as a member.
def length_finder(input_array)
output = []
input_array.each do |x|
output << x.length
end
return output
end
my_array = length_finder(["first", "second", "third", "forth"])
Array.each, which is a cleaner way to loop through the items (although kudos on the clever use oftimes)