Tutorial by Examples: et

Installation or Setup

ReactJS is a JavaScript library contained in a single file react-<version>.js that can be included in any HTML page. People also commonly install the React DOM library react-dom-<version>.js along with the main React file: Basic Inclusion <!DOCTYPE html> <html> <...

Installation or Setup

Knockout is available on most JavaScript platforms, or as a standalone script. Include as a script You can download the script from it's download page, then include it in your page with a standard script tag <script type='text/javascript' src='knockout-3.4.0.js'></script> Using a C...

Linear regression on the mtcars dataset

The built-in mtcars data frame contains information about 32 cars, including their weight, fuel efficiency (in miles-per-gallon), speed, etc. (To find out more about the dataset, use help(mtcars)). If we are interested in the relationship between fuel efficiency (mpg) and weight (wt) we may start p...

Get the list of all databases on a server

Method 1: Below query will be applicable for SQL Server 2000+ version (Contains 12 columns) SELECT * FROM dbo.sysdatabases Method 2: Below query extract information about databases with more informations (ex: State, Isolation, recovery model etc.) Note: This is a catalog view and will be availa...

Installation and Setup

Prerequisites and Requirements for Magento Community Edition 1.9 Hosting Apache 2.x ( with mod_rewrite ) or Nginx 1.7.x Due to the demands of processing Magento operations, it is recommended that you install Magento on a server with at least 2 GB of RAM. This will ensure that all of the s...

Installation or Setup

Windows If you have Visual Studio (any version including express and community) installed, F# should already be included. Just choose F# as the language when you create a new project. Or see http://fsharp.org/use/windows/ for more options. OS X Xamarin Studio supports F#. Alternately, you could u...

Installation/Setup

Downloading: Download Bootstrap directly or clone, etc. from the GitHub repository Download your customized version of Bootstrap from official docs Install with bower: bower install bootstrap Install with npm: npm install bootstrap Install with composer: composer require twbs/bootstrap The...

Function Arguments, "arguments" object, rest and spread parameters

Functions can take inputs in form of variables that can be used and assigned inside their own scope. The following function takes two numeric values and returns their sum: function addition (argument1, argument2){ return argument1 + argument2; } console.log(addition(2, 3)); // -> 5 ...

Installation or Setup

Windows PowerShell is included with the Windows Management Framework. Installation and Setup are not required on modern versions of Windows. Updates to PowerShell can be accomplished by installing a newer version of the Windows Management Framework. Other Platforms "Beta" version of P...

Installation and Setup

Option 1: Leiningen Requires JDK 6 or newer. The easiest way to get started with Clojure is to download and install Leiningen, the de facto standard tool to manage Clojure projects, then run lein repl to open a REPL. Linux curl https://raw.githubusercontent.com/technomancy/leiningen/stable/bin/l...

Installation or Setup

Getting setup with Spring Boot for the first time is quite fast thanks to the hard work of the Spring Community. Prerequisites: Java installed Java IDE Recommended not required (Intellij, Eclipse, Netbeans, etc.) You don't need to have Maven and/or Gradle installed. The projects generate...

Installation or Setup

Windows Verify that you have the correct JDK. You can check it by opening command prompt (press windows key and write cmd). In the command prompt type javac -version, this will show the current version of JDK installed on your matching or an error* if Java is missing. If the JDK is not availabl...

Size to fit

Suppose you have a UILabel on your storyboard and you have created an IBOutlet for it in ViewController.swift / ViewController.m and named it labelOne. To make the changes easily visible, change the backgroundColor and textColor of labelOne in the viewDidLoad method: The function sizeToFit is use...
iOS • UILabel

Difference between single-quoted and double-quoted String literals

The main difference is that double-quoted String literals support string interpolations and the full set of escape sequences. For instance, they can include arbitrary Ruby expressions via interpolation: # Single-quoted strings don't support interpolation puts 'Now is #{Time.now}' # Now is #{Time...

Installation or Setup

By default, all the required libraries for build ASP.NET applications are included during the installation of Visual Studio. If a newer version of ASP.NET is released that was not included with Visual Studio, you can download the appropriate SDK library from Microsoft, which will include all the nec...

Differences between range and xrange functions

In Python 2, range function returns a list while xrange creates a special xrange object, which is an immutable sequence, which unlike other built-in sequence types, doesn't support slicing and has neither index nor count methods: Python 2.x2.3 print(range(1, 10)) # Out: [1, 2, 3, 4, 5, 6, 7, 8, 9...

Using an explicit count argument to determine the length of the va_list

With any variadic function, the function must know how to interpret the variable arguments list. With the printf() or scanf() functions, the format string tells the function what to expect. The simplest technique is to pass an explicit count of the other arguments (which are normally all the same ...

Setup

LINQ requires .NET 3.5 or higher (or .NET 2.0 using LINQBridge). Add a reference to System.Core, if it hasn't been added yet. At the top of the file, import the namespace: C# using System; using System.Linq; VB.NET Imports System.Linq

Installation or Setup

The Dart SDK includes everything you need to write and run Dart code: VM, libraries, analyzer, package manager, doc generator, formatter, debugger, and more. If you are doing web development, you will also need Dartium. Automated installation and updates Installing Dart on Windows Installing Da...

Installation or Setup

Overview Unity runs on Windows and Mac. There is also a Linux alpha version available. There are 4 different payment plans for Unity: Personal - Free (see below) Plus - $35 USD per month per seat (see below) Pro - $125 USD per month per seat - After subscribing to the Pro plan for 24 consecut...

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