2010
2010/07/16
@kei_s

( )
id:kei-s, @kei_s
RubyKaigi2010

( )
id:kei-s, @kei_s
RubyKaigi2010

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

:

:

Ruby JavaScript
Ruby
JavaScript
Ajax Ruby

Ruby JavaScript
Ruby JavaScript

1. Ajax

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

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

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

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

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

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

2.

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

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

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

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

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

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

3.

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

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

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

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);

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
#=>

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)

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

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

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)

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

Ruby JavaScript
=>

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

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

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

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

A Jedi Master said ...

http://twitpic.com/22iyix

“Control, control.
You must learn control.”

“Control, control.
You must learn control.”

“Control, control.
You must learn control.”

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

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

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

“Control, control.
You must learn control.”

“