オブジェクト倶楽部２０１０夏イベント ぴちぴち若人トラック http://www.objectclub.jp/event/2010summer/

1. 2010
2010/07/16
@kei_s

2. ( )
id:kei-s, @kei_s
RubyKaigi2010

4. ( )
id:kei-s, @kei_s
RubyKaigi2010

5. I like ...
Ruby
JavaScript
( Squarepusher )
( )

6. :

7. :

8. Ruby JavaScript
Ruby
JavaScript
Ajax Ruby

9. Ruby JavaScript
Ruby JavaScript

10. 1. Ajax

11. JavaScript ( with jQuery )
var user = {name: ‘kei_s’};
user.age = 26;
$.post(‘/user’, {data: user});

12. Ruby ( with Sinatra )
post ‘/user’ do
user = params
puts user.age
‘ok’
end
#=>

13. Ruby ( with Sinatra )
post ‘/user’ do
user = params
puts user.age
‘ok’
end
#=> NoMethodError:
undefined method `age'

15. Ruby ( with Sinatra )
post ‘/user’ do
user = params
puts user.age
‘ok’
end
#=> NoMethodError:
undefined method `age'

16. Ruby ( with Sinatra )
post ‘/user’ do
user = params
# puts user.age
puts user[‘age’]
‘ok’
end
#=> 26

17. JavaScript
hash.key //=> value
hash[‘key’] //=> value
Ruby
hash.key #=> key
hash[‘key’] #=> value

18. 2.

19. Ruby
users = [
{'age'=>22},{'age'=>26},{'age'=>31}
]
users.select{|user|
user[‘age’] < 30
}.size
#=> 2

20. JavaScript
var users = [
{'age': 22},{'age': 26},{'age': 31}
];
users.filter(function(user){
user.age < 30;
}).length;
//=>

21. JavaScript
var users = [
{'age': 22},{'age': 26},{'age': 31}
];
users.filter(function(user){
user.age < 30;
}).length;
//=> 0

23. JavaScript
var users = [
{'age': 22},{'age': 26},{'age': 31}
];
users.filter(function(user){
user.age < 30;
}).length;
//=> 0

24. JavaScript
var users = [
{'age': 22},{'age': 26},{'age': 31}
];
users.filter(function(user){
//user.age < 30;
return user.age < 30;
}).length; //=> 2

25. JavaScript
function(){ v; } //=> undefined
function(){ return v; } //=> v
Ruby
def func() v; end #=> v
def func() return v; end #=> v

26. 3.

27. JavaScript ( with jQuery )
$.get(‘/user.json’,
function(response){
console.log( response );
}
);

28. Ruby ( with Typhoeus )
hydra = Typhoues::Hydra.new
request= Typhoeus::Request.new(‘/user.json’)
request.on_complete do |response|
puts response.body
end
hydra.queue request
hydra.run

29. JavaScript ( with jQuery )
$.get(‘/user.json’,
function(response){
console.log( response );
}
);

30. JavaScript ( with jQuery )
Users.prototype.store = function(response) {
this.responses.push(response);
};
var users = new Users();
$.get(‘/user1.json’,users.store);
$.get(‘/user2.json’,users.store);

31. Ruby ( with Typhoeus )
def Users.store(response)
@responses << response
end
users = Users.new
request1 = Typhoeus::Request.new(‘/user1.json’)
request2 = Typhoeus::Request.new(‘/user2.json’)
request1.on_complete(users.store)
request2.on_complete(users.store)
hydra.queue request1
hydra.queue request2
hydra.run
#=>

32. Ruby ( with Typhoeus )
def Users.store(response)
@responses << response
end
users = Users.new
request1 = Typhoeus::Request.new(‘/user1.json’)
request2 = Typhoeus::Request.new(‘/user2.json’)
request1.on_complete(users.store)
request2.on_complete(users.store)
hydra.queue request1
hydra.queue request2
hydra.run
#=> ArgumentError:
wrong number of arguments (0 for 1)

34. Ruby ( with Typhoeus )
request.on_complete(users.store)
#=> Users#store
#=> ArgumentError:
wrong number of arguments (0 for 1)

35. Ruby ( with Typhoeus )
def Users.store(response)
@responses << response
end
users = Users.new
request.on_complete do |response|
users.store(response)
end #=> OK

36. Ruby ( with Typhoeus )
def Users.store(response)
@responses << response
end
users = Users.new
request.on_complete &users.method(:store)
#=> OK
request.on_complete = users.method(:store)
#=> OK (only for Typhoeus::Request)

37. JavaScript
object.func //=> Function
Ruby
object.method(:func)
#=> Method
object.method(:func).to_proc
#=> Proc

38. Ruby JavaScript
=>

41. http://www.flickr.com/photos/magisterludi/405224443/

42. http://www.flickr.com/photos/delusionary/478351622/

43. http://www.flickr.com/photos/midgley/3687327166/

44. http://www.flickr.com/photos/hand-nor-glove/563554215/

45. A Jedi Master said ...

46. http://twitpic.com/22iyix

47. “Control, control.
You must learn control.”

50. “Control, control.
You must learn control.”

51. “Control, control.
You must learn control.”

52. http://www.flickr.com/photos/fazen/427962176/

53. http://www.flickr.com/photos/hand-nor-glove/626648592/

55. http://www.flickr.com/photos/magisterludi/405224443/

56. “Control, control.
You must learn control.”

57. “