perigree/Ruby at master · VeronikaA/perigree · GitHub

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 "Veronika"
=> "Veronika"
Success!
> "Veronika".reverse
=> "akinoreV"
Success!
> "Veronika".length
=> 8
Success!
> "Veronika" *5
=> "VeronikaVeronikaVeronikaVeronikaVeronika"
Success!
> next
> 40.reverse
=> #<NoMethodError: undefined method `reverse' for 40:Fixnum>
Oh no!
> 40.to_s.reverse
=> "04"
That's better!
> []
=> []
Success!
> [12, 47 ,35]
=> [12, 47, 35]
Success!
> [12, 47, 35].max
=> 47
Success!
> ticket= [12, 47, 35]
=> [12, 47, 35]
Success!
> ticket
=> [12, 47, 35]
Success!
> ticket.sort
=> [12, 35, 47]
> next
> print poem
=> "My toast has flown from my hand
And my toast has gone to the moon.
But when I saw it on television,
Planting our flag on Halley's comet,
More still did I want to eat it."
Success!
> poem['toast'] = 'honeydew'
=> "honeydew"
Success!
> print poem
=> "My honeydew has flown from my hand
And my toast has gone to the moon.
But when I saw it on television,
Planting our flag on Halley's comet,
More still did I want to eat it."
> next
> poem.reverse
=> ".ti tae ot tnaw I did llits eroM
,temoc s'yellaH no galf ruo gnitnalP
,noisivelet no ti was I nehw tuB
.noom eht ot enog sah tsaot ym dnA
dnah ym morf nwolf sah wedyenoh yM"
Success!
> poem.lines.to_a.reverse
=> ["More still did I want to eat it.
", "Planting our flag on Halley's comet,
", "But when I saw it on television,
", "And my toast has gone to the moon.
", "My honeydew has flown from my hand
"]
Success!
> print poem.lines.to_a.reverse.join
More still did I want to eat it.
Planting our flag on Halley's comet,
But when I saw it on television,
And my toast has gone to the moon.
My honeydew has flown from my hand
Success!
> next
> books={}
=> {}
Success!
> books ["Gravity's Rainbow"] = splendid
=>
#<Racc::ParseError: (string):1 :: parse error on value "=" (tEQL)>
> books ["Gravity's Rainbow"] = : splendid
=>
#<Racc::ParseError: (string):1 :: parse error on value "=" (tEQL)>
> books["Gravity's Rainbow"] =:splendid
=> :splendid
Success!
> books.length
=> 1
> books["Gravity's Rainbow"]
=> :splendid
Success!
> books.keys
=> ["Gravity's Rainbow"]
> next
> ratings = Hash.new
=> {}
Success!
> books.values.each { |rate| ratings [rate] +=1}
=> #<NoMethodError: undefined method `+' for nil:NilClass>
> books.values.each {|rate| ratings [rate] += 1 }
=> #<NoMethodError: undefined method `+' for nil:NilClass>
> ratings
=> {}
> next
> 5.times {print "Odelay!" }
=> "Odelay!Odelay!Odelay!Odelay!Odelay!"
Success!
> next
> Dir.entries "/"
=> [".", "..", "Home", "Libraries", "MouseHole", "Programs", "Tutorials", "comics.txt"]
Success!
> Dir ["/*.txt"]
=>
#<NoMethodError: undefined method `Dir' for main:Object>
> Dir["/*.txt"]
=> ["/comics.txt"]
Success!
> print File.read ("/comics.txt")
=> "Achewood: http://achewood.com/
Dinosaur Comics: http://qwantz.com/
Perry Bible Fellowship: http://cheston.com/pbf/archive.html
Get Your War On: http://mnftiu.cc/
"
Success!
> FileUtils.cp('/comics.txt', '/Home/comics.txt')
=> nil
Success!

> Dir["/Home/*.txt"]
=> ["/Home/comics.txt"]
> next
> File.open("/Home/comics.txt", "a") do |f|
.. f << "Cat and Girl: http://catandgirl.com/"
.. end
=> #<File:/Home/comics.txt (closed)>
> print File.read ("/Home/comocs.txt")

> print File.read ("/Home/comics.txt")
=> "Achewood: http://achewood.com/
Dinosaur Comics: http://qwantz.com/
Perry Bible Fellowship: http://cheston.com/pbf/archive.html
Get Your War On: http://mnftiu.cc/
Cat and Girl: http://catandgirl.com/"
> next
> File.mtime("/Home/comics.txt")
=> 2015-10-18 00:45:38 UTC
Success!
> File.mtime("/Home/comics.txt").hour
=> 0
Success!
> next
> def load_comics (path)
..  comics = {}
  File.foreach(path) do |line|
    name, url = line.split(': ')
    comics[name] = url.strip
  end
  comics
end