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Function.prototype.intercept = function(callback) { 
  var underlyingObservable = this; 
  return ko.dependentObservable({ 
    read: underlyingObservable, 
    write: function(value) { callback.call(underlyingObservable, value) } 
  }); 
}; 

viewModel.lastName = ko.observable("some initial value").intercept(function(value) { 
    // Only accepts strings of length < 20 

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#model

class Week < ActiveRecord::Base
  def weeks=(weeks)
    self.week = weeks.reject(&:blank?) * ","
  end

  def weeks
    self.week.split(",")
  end

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JSConf.EU 2011 Slides

JSConf.eu opening song - JavaScript Will Listen - Bella Morningstar

Downstairs (Day 1)

• Plask - Dean McNamee
• Plask

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//before

switch(action) {
   case: "new"
     return "create";
   case: "edit"
     return "update";
   default:
     return "unknown";
};

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/** 
  @author: A.J <[email protected]>
  @date: 2011-10-11
  @version: 0.1
  @param {Array} arr
  @return Object
 */
var arr = ["a", "b", "c", "d", "e"];

function objectify( arr ) {

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sys  = require 'sys'
http = require 'http'
host = "0.0.0.0"
port = 3000
http.createServer (request,response) ->
  [_, op, a, b] = request.url.split "/"
  a = parseInt a
  b = parseInt b
  result = {
    "add": (a, b) -> a + b

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#ruby-1.9.2-p290

e = [*1..9].each # => #<Enumerator: [1, 2, 3, 4, 5, 6, 7, 8, 9]:each> 
e.next           # => 1
e.next           # => 2 
e.rewind         # => #<Enumerator: [1, 2, 3, 4, 5, 6, 7, 8, 9]:each> 
e.next           # => 1 

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vows   = require 'vows'
assert = require 'assert'
#Document = require('../../models/document')

## model ##
mongoose = require 'mongoose'
Schema   = mongoose.Schema
ObjectId = Schema.ObjectId
db = mongoose.connect 'mongodb://localhost:27017/notepad'
DocumentSchema = new Schema

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require 'test/unit'
require 'rubygems'
gem 'activesupport'
require 'active_support/core_ext/module'

class Original
  def hello
    "Original"
  end
end

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vows    = require 'vows'
assert  = require 'assert'
tobi    = require 'tobi'

vows.describe('Root').addBatch
  '브라우저에서':
    topic: -> tobi.createBrowser 3000, 'localhost'
    'GET /의':
      topic: (topic) ->
        topic.get "/", @callback.bind(@, null)