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Comment by cgranier | Hacker News Reader

I always liked this one I wrote ages ago, to generate strong (at the time) passwords:

[code lang=“ruby”]

((33..126).map { |i| i.chr }).to_a.shuffle[0..14].join

[/code]

Or for readable/memorable ones

    File.readlines('/usr/share/dict/words').map(&:strip).shuffle.first(5).map(&:capitalize).join

    => "PanChloroformateParoticTillotBrushoff"

A bit more efficient:

14.times.map { rand(33..126).chr }.shuffle.join

And 3x more possibilities because it allows the same character more than once. But I think the last shuffle is not necessary

Thanks! Learned something new today (even though I’m mostly on Python now)

Why shuffle? Does it do something rand doesn't already do?

At any rate, would probably want to use https://ruby-doc.org/stdlib-2.5.1/libdoc/securerandom/rdoc/S... for password generation.

Also, I think you might just want an alphabet and use sample: https://ruby-doc.org/core-2.5.1/Array.html#method-i-sample

# unsure if you need a:

require 'securerandom'

(33..126).sample(14, random: SecureRandom).map(&:chr).join

You're right, probably doesn't need shuffle :)