Finding length of all strings in an array in Ruby

Question

dictionary = File.foreach('dictionary.txt').map { |line| line.split('\n') }
dictionary.each{|word|
    puts word.length
        if word.length == 5
            puts word
        end
}

It says the value for each |word| is only 1. Anyone have a clue why? Thanks.

map { ... split('\n') } should return array of arrays, each of subarrays with only one element (as the delimiter \n is at the end). You want line.strip, not line.split. Voting to close as typo. — Amadan
– Amadan, Commented Aug 12, 2015 at 4:20

Ry- · Accepted Answer · 2015-08-12 04:23:27Z

1

You’re mapping a function that splits a line into lines to every line. Each line will contain one line, resulting in a one-element array. Maybe you meant line.chomp?

dictionary = File.foreach('dictionary.txt').map &:chomp

answered Aug 12, 2015 at 4:23

Ry-♦

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