Tutorial by Examples: u

Get image from file lib.myImage = IMAGE lib.myImage.file = fileadmin/My-Image.png lib.myImage.file.width = 100 lib.myImage.file.height = 100 Get image from page properties lib.pageImage = IMAGE lib.pageImage { file.import.data = levelmedia: -1, "slide" file.impor...

SQLite already has extensive documentation, which should not be duplicated here.

# get a list of columns cols = list(df) # move the column to head of list using index, pop and insert cols.insert(0, cols.pop(cols.index('listing'))) # use ix to reorder df2 = df.ix[:, cols]

When it comes to validate some rules which are not generic data validation e.g ensuring a field is required or some range of values but they are specific to your business logic then you can create your own Custom Validator. To create a custom validation attribute, you just need to inherit Validation...

Just like you handle get requests in Express with app.get method, you can use app.post method to handle post requests. But before you can handle POST requests, you will need to use the body-parser middleware. It simply parses the body of POST, PUT, DELETE and other requests. Body-Parser middleware...

In the example we will start tomcat 7 using maven plugin, optionally add user/password protection for REST end point. Also adding feature of building war. Add below section in plugin section of pom for tomcat <plugin> <groupId>org.apache.tomcat.maven</g...

Step 1: Install Node.js The build pipeline you will be building is based in Node.js so you must ensure in the first instance that you have this installed. For instructions on how to install Node.js you can checkout the SO docs for that here Step 2: Initialise your project as an node module Open y...

It is possible to send a message or data to all avaible connections. This can be achieved by first initializing the server and then using the socket.io object to find all sockets and then emit as you normally would emit to a single socket var io = require('socket.io')(80) // 80 is the HTTP port io...

jHipster allows you to bootstrap a Spring Boot web application with a REST API back-end and a AngularJS and Twitter Bootstrap front-end. More on jHipster here: jHipster Documentation Install brew: /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/inst...

class My_Plugin() { function __construct() { add_action( 'wp_enqueue_scripts', array( $this, 'init_fe_assets' ) ); } public function init_fe_assests() { wp_enqueue_style( 'my-plugin', plugin_dir_url( __FILE__ ) . 'assets/css/frontend/plugin.css', array(), '0.0.1', true ); ...

val and var scala> val a = 123 a: Int = 123 scala> a = 456 <console>:8: error: reassignment to val a = 456 scala> var b = 123 b: Int = 123 scala> b = 321 b: Int = 321 val references are unchangeable: like a final variable in Java, once it has been initial...

Let's pick as an example a function that takes 2 Map and return a Map containing every element in ma and mb: def merge2Maps(ma: Map[String, Int], mb: Map[String, Int]): Map[String, Int] A first attempt could be iterating through the elements of one of the maps using for ((k, v) <- map) and so...

In Express, you can define middlewares that can be used for checking requests or setting some headers in response. app.use(function(req, res, next){ }); // signature Example The following code adds user to the request object and pass the control to the next matching route. var express = req...

The XML document, I will be using throughout the examples is - <a> <b>test-value</b> <d>fragment-d</d> <c-root> <d>fragment-d</d> <e>fragment-e</e> </c-root> </a> The following queries ...

xdmp:estimate(cts:search(fn:doc(), cts:element-value-query(xs:QName("d"), "fragment-d"))) xdmp:estimate can not be used on XPaths unlike fn:count is used in previous example xdmp:estimate actually gives the number of matching fragments

The XML document to consider in this example - <a> <b>test-value</b> <d>fragment-d</d> <c-root> <d>fragment-d</d> <e>fragment-e</e> </c-root> </a> A fragment root is declared on <c-r...

Lets start with creating our first app Open visual studio and > create new project Enter Name and Location Enter your developer site url created in previous step and select Provider-hosted Popup will open which will as for login Next step it will as for type of applicatio...

We have already created first page which will show all the news articles. This page will show Complete article. Add One more Action Method to HomeController [SharePointContextFilter] public ActionResult Aticle(int ArticleId) { User spUser = null; var spContext = SharePointContext...

<?php echo esc_url(get_bloginfo('url')); ?> or if you needed to link to a sub page <?php echo esc_url(get_bloginfo('url') . '/some-sub-page'); ?>

QStack<T> is a template Qt class providing stack. Its analogue in STL is std::stack. It is last in, first out structure (LIFO). QStack<QString> stack; stack.push("First"); stack.push("Second"); stack.push("Third"); while (!stack.isEmpty()) { cout ...