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| function sum(from, to) { | |
| let total = 0 | |
| for (let i = from; i <= to; i += 1) { | |
| total += i | |
| } | |
| return total | |
| } |
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| #!/bin/sh | |
| # | |
| # Check for ruby style errors | |
| red='\033[0;31m' | |
| green='\033[0;32m' | |
| yellow='\033[0;33m' | |
| NC='\033[0m' | |
| if git rev-parse --verify HEAD >/dev/null 2>&1 |
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| require 'benchmark' | |
| # Levenshtein algorithm written in pure ruby. | |
| # https://github.com/threedaymonk/text | |
| require 'text' | |
| # Levenshtein algorithm in C++ with ruby wrapper | |
| # https://github.com/dbalatero/levenshtein-ffi | |
| require 'levenshtein' |
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| Plugboard = Hash[*('A'..'Z').to_a.shuffle.first(20)] | |
| Plugboard.merge!(Plugboard.invert) | |
| Plugboard.default_proc = proc { |hash, key| key } | |
| def build_a_rotor | |
| Hash[('A'..'Z').zip(('A'..'Z').to_a.shuffle)] | |
| end | |
| Rotor_1, Rotor_2, Rotor_3 = build_a_rotor, build_a_rotor, build_a_rotor |
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| # Usage: | |
| # | |
| # peak_memory = track_memory do | |
| # 1000000.times { |i| puts i } | |
| # end | |
| # | |
| # puts peak_memory | |
| # -> 845073 | |
| require 'thread' |
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| # Usage | |
| # DJ config | |
| require Rails.root.join('lib', 'dj_plugin.rb') | |
| Delayed::Worker.plugins << Delayed::Plugins::EmailNotify | |
| # lib/dj_plugin.rb | |
| require 'exception_notification' |
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| def gravatar_url(size) | |
| gravatar_id = Digest::MD5.hexdigest(email.downcase) | |
| "http://gravatar.com/avatar/#{gravatar_id}.png?s=#{size}" | |
| end |
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| def self.easter(year) | |
| y = year | |
| a = y % 19 | |
| b = y / 100 | |
| c = y % 100 | |
| d = b / 4 | |
| e = b % 4 | |
| f = (b + 8) / 25 | |
| g = (b - f + 1) / 3 | |
| h = (19 * a + b - d - g + 15) % 30 |
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| # It extends activeadmin to show pretty boolean values | |
| # | |
| # config/initializers/active_admin.rb | |
| module ActiveAdmin | |
| module Views | |
| class TableFor | |
| def bool_column(attribute) | |
| column(attribute){ |model| model[attribute] ? '✔'.html_safe : '✗'.html_safe } | |
| end |
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