Tutorial by Examples: w

LinqPad is a great tool that allows you to learn and test features of .Net languages (C#, F# and VB.Net.) Install LinqPad Create a new Query (Ctrl + N) Under language, select "C# statements" Type the following code and hit run (F5) string hw = "Hello World&quo...

Aliasing types cuts down on boilerplate and enhances readability, but it is no more type-safe than the aliased type itself is. Consider the following: type alias Email = String type alias Name = String someEmail = "[email protected]" someName = "Benedict" sendEmail ...

Python 3 allows you to define function arguments which can only be assigned by keyword, even without default values. This is done by using star * to consume additional positional parameters without setting the keyword parameters. All arguments after the * are keyword-only (i.e. non-positional) arg...

boot -d seancorfield/boot-new new -t app -n <appname> This command will tell boot to grab the task boot-new from https://github.com/seancorfield/boot-new and execute the task with the app template (see link for other templates). The task will create a new directory called <appname> wi...

Firebase Authentication allows the users of your app to sign-in with social providers or their email+password. But what if you want to store additional information about a user, beyond what Firebase Authentication allows you to specify? Or what if you want to display a list of the users in your app...

Complete the Installation and setup part. This will create the project in Firebase console and will also install the base SDK in your Android App. Add the dependency for Firebase Realtime Database to your app-level build.gradle file: compile 'com.google.firebase:firebase-database:9.4.0' N...

The std::borrow::Borrow and std::borrow::BorrowMut traits are used to treat borrowed types like owned types. For types A and B, impl Borrow<B> for A indicates that a borrowed A may be used where a B is desired. For instance, std::collections::HashMap.get() uses Borrow for its get() method,...

Unlike the other helpers, this one uses static class helpers to serialize and deserialize, hence it is a little bit easier than the others to use. using Newtonsoft.Json; var rawJSON = "{\"Name\":\"Fibonacci Sequence\",\"Numbers\":[0, 1, 1, 2, 3, 5, 8, 13]}...

Use the packet manager to install Microsoft.Owin.SelfHost install-packet Microsoft.Owin.SelfHost Code for a bare minimum HelloWorld web application running from a console window: namespace HelloOwin { using System; using Owin; class Program { static readonly stri...

If you created an empty project, or you still don't have mvc configured in your application, you can add dependency: "Microsoft.AspNetCore.Mvc": "1.0.1" To your project.json file under "dependencies". And register MVC middleware in your Startup class: public void ...

Three things are usually important when starting to learn to use MPI. First, you must initialize the library when you are ready to use it (you also need to finalize it when you are done). Second, you will want to know the size of your communicator (the thing you use to send messages to other process...

CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 5.0); CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB(); CGContextMoveToPoint(context, 200, 400); CGContextAddLineToPoint(context, 100, 100); CGContextStrokePath(context); CGColorSpaceRelease(colors...

Draw To requires Core Text framework to be added in the Build Phase [NSString* textToDraw = @"Welcome to the world Of IOS"; CFStringRef stringRef = (__bridge CFStringRef)textToDraw; CFAttributedStringRef currentText = CFAttributedStringCreate(NULL, stringRef, NULL); ...

What? : A fully supported and extensible framework for building HTTP based endpoints. In the world of HTML5, mobile devices, and modern development techniques HTTP have become the default option for building rich, scalable services. The ASP.NET Web API provides an easy to use set of default options...

<form asp-action="create" asp-controller="Home" asp-route-returnurl="dashboard" asp-route-from="google"> <!--Your form elements goes here--> </form> This will generate the below markup <form action=&qu...

An interface is a definition of a contract between the user of the interface and the class that implement it. One way to think of an interface is as a declaration that an object can perform certain functions. Let's say that we define an interface IShape to represent different type of shapes, we exp...

Pass a native python dictionary mapping strings to strings to create(). Catalog.objects.create(name='Library of Congress', titles_to_authors={ 'Using HStoreField with Django': 'CrazyPython and la communidad', 'Flabbergeists and thingamajigs': 'La Artista Fooista', 'Pro Git': 'Scott C...

The @while directive will loop over a block of code until the condition specified becomes false. In the following example, this loop will run until $font-size <= 18 while incrementing the value for $font-size by 2. $font-size: 12; @while $font-size <= 18 { .font-size-#{$font-size} { ...

All versions of SharePoint are based around Sites (SPSite (SSOM) or Site (CSOM)) and Webs (SPWeb(SSOM) or Web(CSOM)). A site is not rendered in the UI although it does contain metadata and features that are applied to its children. A web is the basic building block that renders a UI to the user acce...

ClientContext clientContext = new ClientContext(siteUrl); Web oWebsite = clientContext.Web; clientContext.Load(oWebsite); clientContext.ExecuteQuery(); Console.WriteLine("Title: {0} Description: {1}", oWebsite.Title, oWebsite.Description);