Tutorial by Examples: al

Installation & Setup

Installation Installing Codename One In NetBeans These instructions assume you have downloaded a recent version of NetBeans (at this time 8.x), installed and launched it. Select the Tools->Plugins menu option Select the Available Plugins Tab Check The CodenameOne Plugin ...

Codename One • Getting started with Codename One

Installation or Setup

Detailed instructions on getting Verilog set up or installed is dependent on the tool you use since there are many Verilog tools.

verilog • Getting started with verilog

Installation or Setup

What is AJAX? AJAX stands for Asynchronous JavaScript and XML. In a nutshell, it is the use of the XMLHttpRequest object to communicate with server-side scripts. It can send as well as receive information in a variety of formats, including JSON, XML, HTML, and even text files. -Mozilla Devel...

ajax • Getting started with ajax

Using configuration qualifiers

Android supports several configuration qualifiers that allow you to control how the system selects your alternative resources based on the characteristics of the current device screen. A configuration qualifier is a string that you can append to a resource directory in your Android project and speci...

Android • Supporting Screens With Different Resolutions, Sizes

Installation or Setup

In short: XPages is part of IBM Domino Designer. Extra setup or installation isn't required for XPages. First XPage / Hello-World-Example To create your first XPage you have to create a new NSF first. Open the IBM Domino Designer, and open the menu "File" -> "New" -> &...

xpages • Getting started with xpages

Declaring a HashSet with values

You can create a new class that inherits from HashSet: Set<String> h = new HashSet<String>() {{ add("a"); add("b"); }}; One line solution: Set<String> h = new HashSet<String>(Arrays.asList("a", "b")); Using guava: Se...

Java Language • Sets

Conditional logic and cross-platform handling

In a nutshell, conditional pre-processing logic is about making code-logic available or unavailable for compilation using macro definitions. Three prominent use-cases are: different app profiles (e.g. debug, release, testing, optimised) that can be candidates of the same app (e.g. with extra log...

C++ • Preprocessor

Aliases & Similar Functions

In PowerShell, there are many ways to achieve the same result. This can be illustrated nicely with the simple & familiar Hello World example: Using Write-Host: Write-Host "Hello World" Using Write-Output: Write-Output 'Hello world' It's worth noting that although Write-Outp...

PowerShell • Getting started with PowerShell

Installation or Setup

Basic installation: You can download redux javascript file, using this link. Also you can install redux, using bower : bower install https://npmcdn.com/redux@latest/dist/redux.min.js Next, you need to include redux to your page: <html> <head> <script type="text/jav...

redux • Getting started with redux

DELETE all rows

Omitting a WHERE clause will delete all rows from a table. DELETE FROM Employees See TRUNCATE documentation for details on how TRUNCATE performance can be better because it ignores triggers and indexes and logs to just delete the data.

SQL • DELETE

ALWAYS Use "Option Explicit"

In the VBA Editor window, from the Tools menu select "Options": Then in the "Editor" tab, make sure that "Require Variable Declaration" is checked: Selecting this option will automatically put Option Explicit at the top of every VBA module. Small note: This is ...

excel-vba • VBA Best Practices

Pattern Matching Sealed Traits

When pattern matching an object whose type is a sealed trait, Scala will check at compile-time that all cases are 'exhaustively matched': sealed trait Shape case class Square(height: Int, width: Int) extends Shape case class Circle(radius: Int) extends Shape case object Point extends Shape ...

Scala Language • Pattern Matching

Installation or Setup

Detailed instructions on getting ibm-bluemix set up or installed.

ibm-bluemix • Getting started with ibm-bluemix

Extracting values of a given type from an Array with flatMap(_:)

The things Array contains values of Any type. let things: [Any] = [1, "Hello", 2, true, false, "World", 3] We can extract values of a given type and create a new Array of that specific type. Let's say we want to extract all the Int(s) and put them into an Int Array in a safe ...

Swift Language • Arrays

Installation or Setup

python-requests is available on PyPI, the Python Package Index, which means it can be installed through pip: pip install requests Up-to-date source code can be found on the requests GitHub repository If you wish to install it from source, you can do this by either cloning the GitHub repository:...

python-requests • Getting started with python-requests

Modifying keys and values

You can create a new hash with the keys or values modified, indeed you can also add or delete keys, using inject (AKA, reduce). For example to produce a hash with stringified keys and upper case values: fruit = { name: 'apple', color: 'green', shape: 'round' } # => {:name=>"apple",...

Ruby Language • Hashes

Installation and setup

Nginx is a Web server used to serve HTTP requests over the Internet. Nginx is available on Linux, Windows and other OSes as direct download, and can also be built from source. For detailed instructions see Nginx official reference. ubuntu/debian nginx stable version is available in official repo,...

nginx • Getting started with nginx

Installation or Setup

Detailed instructions on getting azureservicebus set up or installed.

azureservicebus • Getting started with azureservicebus

Creating an Option value and pattern match

// The Option type can either contain Some value or None. fn find(value: i32, slice: &[i32]) -> Option<usize> { for (index, &element) in slice.iter().enumerate() { if element == value { // Return a value (wrapped in Some). return Some(index);...

Rust • Option

Minimal example

To write the traditional Hello World program in Rust, create a text file called hello.rs containing the following source code: fn main() { println!("Hello World!"); } This defines a new function called main, which takes no parameters and returns no data. This is where your progra...

Rust • Getting started with Rust