Tutorial by Examples: if

This example shows more detailed build settings: env=Environment( CPPPATH='/usr/include/boost/', CPPDEFINES=['foo'], LIBS=['bar'], SCONS_CXX_STANDARD='c++11') env.Program('hello', Glob('src/*.cpp')) This builds the executable hello from all the cpp files in src, with the f...

We may forget to apply the Antiforgery attribute for each POST request so we should make it by default. This sample will make sure Antiforgery filter will always be applied to every POST request. Firstly create new AntiForgeryTokenFilter filter: //This will add ValidateAntiForgeryToken Attribute t...

The documentation for docker events provides details, but when debugging it may be useful to launch a container and be notified immediately of any related event: docker run... & docker events --filter 'container=$(docker ps -lq)' In docker ps -lq, the l stands for last, and the q for quiet. Th...

To select an element by an HTML attribute that contains a specified value use the css locator pattern [attribute*=value] //selects the first element with href value that contains'cont' element(by.css('[href*="cont"]')); //selects the first element with tag h1 and class attribute that...

A Lifestyle is the "how" Castle controls the scope in which a component is used and when to clean it up. The built-in lifestyles are Singelton, Transient, PerWebRequest, Scoped, Bound, PerThread and Pooled container.Register( Component.For<IFoo>() .ImplementedBy<...

The entire idea with dependency injection is that a class does not instantiate its dependencies but requests them (through constructor or property). Using Castle the way for specifying the way to resolve a dependency is by using the DependsOn: public class Foo : IFoo { public Foo(IBar bar, st...

1) Services A service is a constructor function that is invoked once at runtime with new, just like what we would do with plain javascript with only difference that AngularJs is calling the new behind the scenes. There is one thumb rule to remember in case of services Services are constructors...

Android ButterKnife Zelezny Plugin for generating ButterKnife injections from selected layout XMLs in activities/fragments/adapters. Note : Make sure that you make the right click for your_xml_layou(R.layout.your_xml_layou) else the Generate menu will not contain Butterknife injector option. ...

The next example can be used to determine whether a enumeration has the FlagsAttribute specified. The methodology used is based on Reflection. This example will give a True result: Dim enu As [Enum] = New FileAttributes() Dim hasFlags As Boolean = enu.GetType().GetCustomAttributes(GetType(FlagsAt...

=SUMPRODUCT((A1:A100<>"")/COUNTIF(A1:A100,A1:A100&"")) counts unique cell values within A1:A100, excluding blank cells and ones with an empty string (""). How does it do that? Example: A1:A100 = [1, 1, 2, "apple", "peach", &qu...

if (a > b) { trace("You win!"); } else if (a == b) { trace("It's a draw!"); } else { trace("You lose!"); } // Assigning the evaluated expression to a variable var message = if (a > b) { "You win!"; } else if (a == b) { &...

This example shows how to use the Firebase Cloud Messaging(FCM) platform. FCM is a successor of Google Cloud Messaging(GCM). It does not require C2D_MESSAGE permissions from the app users. Steps to integrate FCM are as follows. Create sample hello world project in Android Studio Your Android...

Authentication can be set for an specific APIView endpoint, by using the authentication_classes variable: from rest_framework.authentication import SessionAuthentication, BasicAuthentication from rest_framework.permissions import IsAuthenticated from rest_framework.response import Response ...

Rewrite Class File: Namespace/ModuleName/etc/di.xml <?xml version="1.0"?> <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd"> <preference for="Ma...

Ubuntu 14.04 example sudo nginx -t

using System.Diagnostics.Contracts; public int DivideNumbers(int numerator, int denominator) { Contract.Requires<ArgumentOutOfRangeException>(denominator != 0); return numerator / denominator; }

Large scale applications often need different properties when running on different environments. we can achieve this by passing arguments to NodeJs application and using same argument in node process to load specific environment property file. Suppose we have two property files for different enviro...

[Test] public void Calculator_Add_ReturnsSumOfTwoNumbers() { Calculator calculatorUnderTest = new Calculator(); double result = calculatorUnderTest.Add(2, 3); Assert.AreEqual(5, result); }

Sometimes it is necessary to assert when an exception is thrown. Different unit testing frameworks have different conventions for asserting that an exception was thrown, (like NUnit's Assert.Throws method). This example does not use any framework specific methods, just built in exception handling. ...

Such Example is knowing wide spreading among PWAs (Progressive Web Applications) and in this example we're going to send a simple Backend like notification using NodeJS and ES6 Install Node-GCM Module : npm install node-gcm Install Socket.io : npm install socket.io Create a GCM Enable...