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        public OrderableService GetById(int id)
        {
            return (from service in SourceSet
                    where service.ID == id
                    select service).
                    FirstOrDefault();
        }

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using System;
using Xunit;

public class HelloWorldTests {
  [Fact]
  public void ShouldSayHello {
    var listener = new Listener();
    var helloWorld = new HelloWorld();
    helloWorld.SayHello(listener.Listen);
    Asser.Equal("Hello world", listener.ReceivedMessage)

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		public OrderableService GetById(int id)
		{
			return (from service in SourceSet
					where service.ID == id
					select service).
							FirstOrDefault();
		}

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directive('ngThrottle', function () {
  return {
    restrict: 'A',
    require: 'ngModel',
    link: function (scope, elm, attr, ngModelCtrl) {
      if (attr.type === 'radio' || attr.type === 'checkbox') return;
      elm.unbind('input').unbind('keydown').unbind('change');
      var disp = elm.keyupAsObservable().
        throttle(attr.ngThrottle).
        select(function(){ return elm.val() }).

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<div ng-app="videoApp" ng-controller="VideoController">

    <table>
        <thead>
            <th>Title</th>
            <th>Length</th>
            <th></th>
        </thead>
        <tbody>
            <tr data-id="{{video.Id}}" ng-repeat="video in videos">

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(ns rx-cljs-demo.client
  (:use [domina :only [by-id]]))

(def query (by-id "query"))

(def obs (Rx/Observable/fromEvent query "keyup"))
(-> obs
    (.map #(.-value query))
    (.filter #(> (count %) 3))
    (.throttle 500)

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public interface IStorage
{
  Uri Save(Stream data, string name);
  Task<Stream> LoadAsync(Uri dataUri);
}

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static void Main()
{
    var service = new MyService
    {
        ServiceName = ConfigurationManager.AppSettings["Service.Name"]
    };
#if DEBUG
    service.OnStart(null);
    Console.WriteLine("Press Ctrl+C to exit.");
    var sync = new System.Threading.ManualResetEventSlim(false);

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public static class ParseEx {
  public delegate bool ParserDelegate<T>(string input, out T result);

  public static Maybe<T> Parse<T>(string input, ParserDelegate<T> parser) {
    T result;
    bool isSuccess = parser(input, out result);
    return isSuccess ? result.ToMaybe() : new Nothing<T>();
  }

  public static Maybe<DateTime> ParseDateTime(string input) {

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// before

var bdayEl = el.Descendant("DatumNarozeni");
var birthday = bdayEl != null ? (DateTime?)Convert.ToDateTime(bdayEl.Value) : null;

// after Maybe

var birthday = from bday in el.Descendant("DatumNarozeni").ToMaybe()
               select Convert.ToDateTime(bday.Value).ToMaybe();