Tutorial by Examples: er

Multiple usernames and email address

Since Git 2.13, multiple usernames and email addresses could be configured by using a folder filter. Example for Windows: .gitconfig Edit: git config --global -e Add: [includeIf "gitdir:D:/work"] path = .gitconfig-work.config [includeIf "gitdir:D:/opensource/"] ...

Git • Configuration

Akka HTTP server: Hello World (Scala DSL)

The following app will start an HTTP server listening on port 8080 that returns Hello world on GET /hello/world import akka.actor.ActorSystem import akka.http.scaladsl.Http import akka.http.scaladsl.server.Directives._ import akka.http.scaladsl.server._ import akka.stream.ActorMaterializer i...

akka • Akka HTTP

pom.xml to generate a FIXME report

<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>project-info-reports</artifactId> <version>2.9</version> <executions> ...

Apache Maven • Generate FIXME/TODO reports using the taglist-maven-plugin

Add React + ReactRouter

If necessary, change to your project directory cd MyAwesomeProject 1- Add react and react-router meteor npm install --save [email protected] [email protected] [email protected] 2- Edit client/main.html, and replace the content will be: <body> <div id="react-root"></div...

meteor • Meteor + React + ReactRouter

Create a term frequency matrix

The simplest approach to the problem (and the most commonly used so far) is to split sentences into tokens. Simplifying, words have abstract and subjective meanings to the people using and receiving them, tokens have an objective interpretation: an ordered sequence of characters (or bytes). Once sen...

R Language • Natural language processing

Integral Type Ranges

Integral type ranges ( IntRange , LongRange , CharRange ) have an extra feature: they can be iterated over. The compiler takes care of converting this analogously to Java's indexed for-loop, without extra overhead for (i in 1..4) print(i) // prints "1234" for (i in 4..1) print(i) // pri...

Kotlin • Ranges

Exploring ModalPresentationStyle using Interface Builder

This will be a very basic app which will illustrate different ModalpresentationStyle in iOS. According to documentation found here, There are 9 different values for UIModalPresentationStyle which are as follows, fullScreen pageSheet formSheet currentContext custom overFullScreen overCurrent...

iOS • ModelPresentationStyles

Expected errors when generating Angular 2 components in .NET Core project (version 0.8.3)

When generating new Angular 2 components in a .NET Core project, you may run into the following errors (as of version 0.8.3): Error locating module for declaration SilentError: No module files found OR No app module found. Please add your new Class to your component. Identica...

asp.net-core • Angular2 and .Net Core

Hash Router

JavaScript: const MainPage = { template: '#mainpage-template' } const Page1 = { template: '#page1-template' } const Page2 = { template: '#page2-template' } const Page3 = { template: '#page3-template' } const router = new VueRouter({ mode: 'hash', routes: [{ path: ...

vuejs2 • Routing

Spying on a property

jasmine • Spies

Generate a random number from an instance of Random

The following example declares a new instance of the Random class and then uses the method .Next to generate the next number in the sequence of pseudo-random numbers. Dim rnd As New Random Dim x As Integer x = rnd.Next The last line above will generate the next pseudo-random number and assign ...

Visual Basic .NET Language • Random

SQL Server Version 2000 - 2016

The following features added in SQL Server 2000 from its previous version: New data types were added (BIGINT, SQL_VARIANT, TABLE) Instead of and for Triggers were introduced as advancement to the DDL. Cascading referential integrity. XML support User defined functions and partition views. In...

Microsoft SQL Server • SQL Server Evolution through different versions (2000 - 2016)

Calling An ActionResult In Another ActionResult

We can call an action result in another action result. public ActionResult Action1() { ViewData["OutputMessage"] = "Hello World"; return RedirectToAction("Action2","ControllerName"); //this will go to second action; } public ActionResult...

asp.net-mvc • ActionResult

Macro: Register::DLL

##= # The variable $Bit will hold either 64 or 32 depending on system architecture # This is used with ${Register::DLL} and ${UnRegister::DLL} # Use this in the beginning of your code. # This snippet should only be used once. # Var Bit System::Call "kernel32::GetCurrentProcess()i.s&quot...

nsis • Registering Libraries (RegDLL)

Macro: UnRegister::DLL

##= # The variable $Bit will hold either 64 or 32 depending on system architecture # This is used with ${Register::DLL} and ${UnRegister::DLL} # Use this in the beginning of your code. # This snippet should only be used once. # Var Bit System::Call "kernel32::GetCurrentProcess()i.s&quo...

nsis • Registering Libraries (RegDLL)

Main class and Adapter

I am assuming that you have aware about the some syntax of Kotlin and how to use, just add RecyclerView in activity_main.xml file and set with adapter class. class MainActivity : AppCompatActivity(){ lateinit var mRecyclerView : RecyclerView val mAdapter : RecyclerAdapter = ...

Kotlin • RecyclerView in Kotlin

Set the right spring-profile by building the application automatically (maven)

By creating multiple properties files for the different environments or use cases, its sometimes hard to manually change the active.profile value to the right one. But there is a way to set the active.profile in the application.properties file while building the application by using maven-profiles. ...

spring-boot • Create and Use of multiple application.properties files

Overriding invoke method to build DSL

If you have: class MyExample(val i: Int) { operator fun <R> invoke(block: MyExample.() -> R) = block() fun Int.bigger() = this > i } you can write the following DSL-like code in your production code: fun main2(args: Array<String>) { val ex = MyExample(233) ex ...

Kotlin • DSL Building

super keyword

interface MyInterface { fun funcOne() { //optional body print("Function with default implementation") } } If the method in the interface has its own default implementation, we can use super keyword to access it. super.funcOne()

Kotlin • Interfaces

Helper for a clean date and hour format.

When you want the current date and time, you can do this with the Javascript function Date, but will return the following format which isn't always useful: Wed Jun 07 2017 13:26:15 GMT+0200 (Romance (zomertijd)). Copy the following code into app/helpers/helpers.js, and simply call getCurrentDateAnd...

ember.js • Date Format Helper