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require'nokogiri'
require'open-uri'

body = open("https://www.amazon.co.jp/gp/bestsellers/digital-text/2293143051", &:read)
doc = Nokogiri::HTML(body)
doc.xpath("//div[@class='zg_itemRow']")

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mimetypeを取得
            let mimeType:String = UTTypeCopyPreferredTagWithClass(string as! CFString, kUTTagClassMIMEType)!.takeRetainedValue() as String

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git rev-list --format=oneline --max-count=10000 HEAD

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heroku logs --tail -a your-app-name

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curl -X PUT --user "id:pass" -d "user[current_password]=XXXXXXXX&user[password]=new_XXXXXXXX" https://XXXXXX.com |jq .

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list = "AAAA"

(for x <- String.split(list,"")|>Enum.drop(-1), do: ([0,0,0] ++ Integer.digits(elem(Code.eval_string("0x"<>x),0),2))|>Enum.take(-4) )|> List.flatten()|> Enum.join()

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defmodule Executor do
  def exec do
    Solver.test("44165,44516", "false")
    Solver.test("26265,31436", "true")
    Solver.test("46345,54215", "true")
    Solver.test("62143,11152", "false")
    Solver.test("4242,4314,1562", "false")
    Solver.test("5612,3656,4523", "false")
    Solver.test("5514,1311,5252", "false")
    Solver.test("5262,4631,2644", "true")

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def words
  [
    'Youtuber',
    'バーチャル',
    'のじゃロリ',
    'おじさん',
    '狐娘',
    'ケモミミ',
    'おばさん',
    '底辺',

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require 'parser/current'

str = <<-FOO
def hoge
  # this is comment
  pp"this is test"
end
FOO

Parser::CurrentRuby.parse_with_comments str

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 (1...100000).to_a.each{`git commit --allow-empty -m "commit"`}