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INSERT INTO `my_table` (`field_1`, `field_2`) VALUES ('data_1', 'data_2'), ('data_1', 'data_3'), ('data_4', 'data_5'); This is an easy way to add several rows at once with one INSERT statement. This kind of 'batch' insert is much faster than inserting rows one by one. Typically...

Java 8 provides classes called IntSummaryStatistics, DoubleSummaryStatistics and LongSummaryStatistics which give a state object for collecting statistics such as count, min, max, sum, and average. Java SE 8 List<Integer> naturalNumbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); IntSu...

Starting with PHP Sessions we can pass an array with session-based php.ini options to the session_start function. Example <?php if (version_compare(PHP_VERSION, '7.0.0') >= 0) { // php >= 7 version session_start([ 'cache_limiter' => 'private', ...

Getting started with Ember is easy. Ember projects are created and managed through our command line build tool Ember CLI. This tool provides: Modern application asset management (including concatenation, minification, and versioning). Generators to help create components, routes, and more. A ...

Xamarin.Forms is a cross-platform natively backed UI toolkit abstraction that allows developers to easily create user interfaces that can be shared across Android, iOS, Windows, and Windows Phone. The user interfaces are rendered using the native controls of the target platform, allowing Xamarin.For...

Symfony Framework - built with symfony components, is one of the leading PHP framework used to create robust websites and web applications. Symfony can be installed quickly through two recommended ways. The official documentaion recommends to install the framework through the Symfony Installer ...

Pseudo-elements are added to selectors but instead of describing a special state, they allow you to style certain parts of a document. The content attribute is required for pseudo-elements to render; however, the attribute can have an empty value (e.g. content: ""). div::after { conte...

Detailed instructions on getting unix set up or installed.

Linux (Ubuntu) Installation Lucee (Open Source) ColdFusion / CFML Interpretor Download the appropriate file from their site (http://lucee.org/downloads.html) and execute their installer wget http://cdn.lucee.org/downloader.cfm/id/155/file/lucee-5.0.0.252-pl0-linux-x64-installer.run sudo chmod ...

MATLAB comes with many built-in scripts and functions which range from simple multiplication to image recognition toolboxes. In order to get information about a function you want to use type: help functionname in the command line. Lets take the help function as an example. Information on how to use...

What is recursion: In general, recursion is when a function invokes itself, either directly or indirectly. For example: // This method calls itself "infinitely" public void useless() { useless(); // method calls itself (directly) } Conditions for applying recursion to a probl...

Just like all programming language, Matlab is designed to read and write in a large variety of formats. The native library supports a large number of Text,Image,Video,Audio,Data formats with more formats included in each version update - check here to see the full list of supported file formats and ...

Detailed instructions on getting android-layout set up or installed.

The for and while compound statements (loops) can optionally have an else clause (in practice, this usage is fairly rare). The else clause only executes after a for loop terminates by iterating to completion, or after a while loop terminates by its conditional expression becoming false. for i in r...

To make a rounded UIView, specify a cornerRadius for the view's layer. This also applies any class which inherits from UIView, such as UIImageView. Programmatically Swift Code someImageView.layoutIfNeeded() someImageView.clipsToBounds = true someImageView.layer.cornerRadius = 10 Objective-C...

In this example, we will look at a method for returning the last non-empty row in a column for a data set. This method will work regardless of empty regions within the data set. However caution should be used if merged cells are involved, as the End method will be "stopped" against a mer...

Any Fortran program has to include end as last statement. Therefore, the simplest Fortran program looks like this: end Here are some examples of "hello, world" programs: print *, "Hello, world" end With write statement: write(*,*) "Hello, world" end For c...

For apt-get based systems such as Ubuntu Add the Jenkins repository: wget -q -O - https://jenkins-ci.org/debian/ Jenkins-ci.org.key | sudo apt-key sudo sh -c 'echo deb http://pkg.jenkins-ci.org/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list' Update sources and install Jenk...

The double-negation !! is not a distinct JavaScript operator nor a special syntax but rather just a sequence of two negations. It is used to convert the value of any type to its appropriate true or false Boolean value depending on whether it is truthy or falsy. !!1 // true !!0 ...

Detailed instructions on getting Nativescript set up or installed. The following examples show the required steps to set up a Windows or OSX system and then sign post to troubleshooting guides in case you have any trouble. In addition, there are examples of how to set up recommended workflows, IDE...