Tutorial by Examples: er

Override merge/compare tools

Got to Tools | Options | Source Control | Visual Studio Team Foundation Server click on the Configure User Tools: You can add separate overrides for 'Compare' and 'Merge' operations. Click on Add and select the operation you want to override. You'd need to type the path to the tool you use, and ...

Visual Studio • Visual Studio tools

Abstract derived types

An extensible derived type may be abstract type, abstract :: base_type end type Such a derived type may never be instantiated, such as by type(base_type) t1 allocate(type(base_type) :: t2) but a polymorphic object may have this as its declared type class(base_type), allocatable :: t1 o...

Fortran • Object Oriented Programming

Displaying numbers with required precision

var a:Number=0.123456789; trace(a); // 0.123456789 trace(a.toPrecision(4)); // 0.1235 trace(a.toFixed(4)); // 0.1235 trace(a.toExponential(4)); // 1.2345e-1 trace(a.toString(16)); // 0 - works for integer part only var b:Number=12345678.9876543; // a bigg...

ActionScript 3 • Working with numerical values

Different Forms of For Loop

Simple form using one variable: for i := 0; i < 10; i++ { fmt.Print(i, " ") } Using two variables (or more): for i, j := 0, 0; i < 5 && j < 10; i, j = i+1, j+2 { fmt.Println(i, j) } Without using initialization statement: i := 0 for ; i < 10; i++ {...

Go • Loops

How to create resuable component using directive

AngularJS directives are what controls the rendering of the HTML inside an AngularJS application. They can be an Html element, attribute, class or a comment. Directives are used to manipulate the DOM, attaching new behavior to HTML elements, data binding and many more. Some of examples of directives...

AngularJS • Custom Directives

Load and play external video file

reference : NetConnection , NetStream , Video related topics : Working with Sound Basic example of playing an external video file (FLV, MP4, F4V). Code will also play M4A audio files. var nc:NetConnection = new NetConnection(); nc.connect(null); var ns:NetStream = new NetStream(nc); va...

ActionScript 3 • Working with Video

Laravel 5 App on Shared Hosting on Linux Server

By default Laravel project's public folder exposes the content of the app which can be requested from anywhere by anyone, the rest of the app code is invisible or inaccessible to anyone without proper permissions. After developing the application on your development machine, it needs to be pushed t...

Laravel • Deploy Laravel 5 App on Shared Hosting on Linux Server

A very simple Hello World application

Starting from a fresh installation of Codeigniter 3, here is a simple way to start with an Hello World application, to break the ice with this solid PHP framework. To do this you can start creating the view that we want to be shown for our Hello World app. We are going to put it in your applicatio...

codeigniter • Let's start: Hello World

Let's use the controller a little more

Now we'll try going for a little more complex example, using the capabilities of the controller to fill in the view. Here is our view: /application/views/hello_world.php <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <titl...

codeigniter • Let's start: Hello World

Using collection initializer inside object initializer

public class Tag { public IList<string> Synonyms { get; set; } } Synonyms is a collection-type property. When the Tag object is created using object initializer syntax, Synonyms can also be initialized with collection initializer syntax: Tag t = new Tag { Synonyms = new List&...

C# Language • Collection Initializers

Simple WCF service

Minimal requirements for WCF service is one ServiceContract with one OperationContract. Service contract: [ServiceContract] public interface IDemoService { [OperationContract] CompositeType SampleMethod(); } Service contract implementation: public class DemoService : IDemoService...

wcf • Getting started with wcf

Terms

On a very high level, Prolog only has a single data type, called term. In Prolog, all data is represented by Prolog terms. Terms are defined inductively: an atom is a term. Examples of atoms are: x, test and 'quotes and space'. a variable is a term. Variables start with an uppercase letter or un...

Prolog Language • Data Structures

Gotcha: Exception in Dispose method masking other errors in Using blocks

Consider the following block of code. try { using (var disposable = new MyDisposable()) { throw new Exception("Couldn't perform operation."); } } catch (Exception ex) { Console.WriteLine(ex.Message); } class MyDisposable : IDisposable { public vo...

C# Language • Using Statement

?. (Null Conditional Operator)

6.0 Introduced in C# 6.0, the Null Conditional Operator ?. will immediately return null if the expression on its left-hand side evaluates to null, instead of throwing a NullReferenceException. If its left-hand side evaluates to a non-null value, it is treated just like a normal . operator. Note tha...

C# Language • Operators

Connecting to the local Wildfly server

To connect to a local Wildfly server via the command line, the tool bin/jboss-cli.sh can be used: $ ./bin/jboss-cli.sh --connect [standalone@localhost:9990 /] To connect to a remote Wildfly server, use the --controller option: $ ./bin/jboss-cli.sh --connect --controller=localhost:9990 [stan...

wildfly • Command line interface (CLI)

Debugger Locals Window

The Locals window provides easy access to the current value of variables and objects within the scope of the function or subroutine you are running. It is an essential tool to debugging your code and stepping through changes in order to find issues. It also allows you to explore properties you might...

excel-vba • Debugging and Troubleshooting

Main Differences

Although people often say Sass as the name of this CSS-preprocessor, they often mean the SCSS-syntax. Sass uses the .sass file extension, while SCSS-Sass uses the .scss extension. They are both referred to as "Sass". Speaking generally, the SCSS-syntax is more commonly used. SCSS looks li...

sass • SCSS vs Sass

Access character at index in string

Use charAt() to get a character at the specified index in the string. var string = "Hello, World!"; console.log( string.charAt(4) ); // "o" Alternatively, because strings can be treated like arrays, use the index via bracket notation. var string = "Hello, World!";...

JavaScript • Strings

REVERSE

Syntax is: REVERSE ( string-expression ) SELECT REVERSE('Hello') --returns olleH

SQL • String Functions

Find a man page in a different section

Sometimes a term is defined in multiple sections of the manual. By default, man will only display the first page it finds, which can be annoying for programmers because C functions are documented in a later section than commands and system calls. Use the following to display all pages that match a...

unix • View the Manual Pages