bonquesha99

  "https://api.github.com/repos/ruby/ruby".pipe do
    URI.parse
    Net::HTTP.get
    JSON.parse.fetch("stargazers_count")
    yield_self { |n| "Ruby has #{n} stars" }
    Kernel.puts
  end
  #=> Ruby has 15120 stars

  [9, 64].map(&Math.pipe.sqrt)           #=> [3.0, 8.0]
  [9, 64].map(&Math.pipe.sqrt.to_i.to_s) #=> ["3", "8"]

  "https://api.github.com/repos/ruby/ruby".pipe do
    URI.parse
    Net::HTTP.get
    JSON.parse.fetch("stargazers_count")
    yield_self { |n| "Ruby has #{n} stars" }
    Kernel.puts
  end
  #=> Ruby has 15120 stars

  # regular inverted method calls
  JSON.parse(Net::HTTP.get(URI.parse(url)))

  # could be written left to right
  url.pipe { URI.parse; Net::HTTP.get; JSON.parse }

  # or top to bottom for even more clarity
  url.pipe do
    URI.parse
    Net::HTTP.get
    JSON.parse
  end

  * Engineering Manager
  * Senior/Staff/Principal Data Scientist
  * Senior/Staff/Principal Software Engineer
  * Design/Finance/HR/Marketing/Operations/Product/Sales/etc

  * Engineering Manager
  * Senior/Staff/Principal Data Scientist
  * Senior/Staff/Principal Software Engineer
  * Design/Finance/HR/Marketing/Operations/Product/Sales/etc

  * Engineering Manager
  * Senior Data Scientist
  * Software Engineer (Frontend or Backend)
  * Design/Finance/HR/Marketing/Operations/Product/Sales/etc

    # don't really know what IO.inspect is doing
    # but guessing something like this?
    def IO.inspect(value, label:)
      puts "#{label}: #{value.inspect}"
      value
    end

    value.pipe do
      IO.inspect(label: "A")
      do_something
      IO.inspect(label: "B")
      do_something_else
      IO.inspect(label: "C")
    end

    def div(*args)
      case args
      when Pattern{[a, 0]} then [:error, "can't divide by 0"]
      when Pattern{[a, 1]} then [:ok, Pattern.last.a]
      when Pattern{[0, b]} then [:ok, 0]
      when Pattern{[a, b]} then [:ok, Pattern.last.a / Pattern.last.b]
      end
    end

    def something(object)
      case object
      when Pattern{a[b, c]} then [:ok, Pattern.last.b + Pattern.last.c]
      else [:error, "a didn't contain b and c"]
      end
    end

    data = {
      name: "John Smith",
      age: 35,
      prefs: {
        lang: "en",
        tz: "UTC",
      }
    }
    
    User = Pattern { name age prefs[lang] }
    
    user = User =~ data
    user.name
    user.age
    user.lang
    
    [data].map(&User)
    
    case object
    when Pattern { some attrs[:nested][real][deep, fields] }
      Pattern!.some
      Pattern!.real
      Pattern!.deep
      Pattern!.fields
      Pattern!.nested #=> NoMethodError
    end
    
    # or define "locals" by defining temporary methods on
    # the block receiver when the "then" block is evaluated
    case object
    when Pattern { some nested[data] }.then do
      puts some
      puts data
    end