Tutorial by Examples: le

MSBuild evaluates PropertyGroup, Choose and ItemGroup elements that are directly under the Project element before those that are in Target elements. Directly under the Project element, PropertyGroup and Choose elements are evaluated in the order in which they appear, and then ItemGroup elements a...

In this example you'll learn how to share a file with other apps. We'll use a pdf file in this example although the code works with every other format as well. The roadmap: Specify the directories in which the files you want to share are placed To share files we'll use a FileProvider, a class all...

Any middleware registered as routeMiddleware in app/Http/Kernel.php can be assigned to a route. There are a few different ways to assign middleware, but they all do the same. Route::get('/admin', 'AdminController@index')->middleware('auth', 'admin'); Route::get('admin/profile', ['using' => ...

Angular 1 is at heart a DOM compiler. We can pass it HTML, either as a template or just as a regular web page, and then have it compile an app. We can tell Angular to treat a region of the page as an expression using the {{ }} handlebars style syntax. Anything between the curly braces will be compi...

content-model.xml : .... <constraints> <constraint name="my:aConstraintList" type="x.y.z.project.model.constraint.AConstraintList"> </constraint> .... <property name="my:aValue"> <title>My Value</title> <typ...

A simple example of Vehicle hierarchy can be taken for single table inheritance strategy. Abstract Vehicle class: package com.thejavageek.jpa.entities; import javax.persistence.DiscriminatorColumn; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persi...

Static initialization is suitable for most situations. When your application must delay the instantiation, use a non-default constructor or perform other tasks before the instantiation, and work in a multithreaded environment, you need a different solution. Cases do exist, however, in which you cann...

MongoDB.connect('mongodb://localhost:27017/databaseName', function(error, database) { if(error) return console.log(error); const collection = database.collection('collectionName'); collection.insert({key: 'value'}, function(error, result) { console.log(error, result); }); }...

const MongoDB = require('mongodb'); MongoDB.connect('mongodb://localhost:27017/databaseName') .then(function(database) { const collection = database.collection('collectionName'); return collection.insert({key: 'value'}); }) .then(function(result) { co...

Angular 2 has two kinds of custom validators. Synchronous validators as in the first example that will run directly on the client and asynchronous validators (the second example) that you can use to call a remote service to do the validation for you. In this example the validator should call the ser...

$skuList = array('SKU-1', 'SKU-2',...,'SKU-n); $_productCollection = Mage::getModel('catalog/product') ->getCollection() ->addAttributeToFilter('sku', array('in' => $skuList)); OR $_productCollection = Mage::getResourceModel('catalog/product_collection') ->addAttributeToFilter('s...

find(query).projection(fields).cursorType(CursorType.TailableAwait).iterator(); That code applies to the MongoCollection class. CursorType is an enum and it has the following values: Tailable TailableAwait Corresponding to the old (<3.0) DBCursor addOption Bytes types: Bytes.QUERYOPTION...

using System; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { var foo = new ClassWithDependency(); foo.DoSomething(); var bar = new InjectedDependency(); foo.Dependency = bar; ...

using System; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { var dep = new DefaultDependency(); var foo = new ClassWithDependency(dep); foo.DoSomething(); var bar = new Injected...

Data with header, separated by semicolons instead of commas file: table.csv index;name;occupation 1;Alice;Saleswoman 2;Bob;Engineer 3;Charlie;Janitor code: import pandas as pd pd.read_csv('table.csv', sep=';', index_col=0) output: name occupation index 1 Alice Sale...

WordPress shortcodes were introduced in 2.5 Here is come example of shortcode [button] to use shortcode direct into theme you have to use do_shortcode() <?php echo do_shortcode('[button]'); ?> To customize the button, we could simply add something like: [button type="twitter&qu...

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 ); ...

The Gson library provides Gson.class which handles all conversion between Java and JSON objects. An instance of this class can be created by invoking default constructor. You usually would like to have one Gson instance for the most part of operations in your program. Gson gson = new Gson(); Fir...

When using instances of QML files by directly declaring them, every property creates a binding. This is explained in the above examples. This is how you dynamically create components: var component = Qt.createComponent("Popup.qml"); var popup = component.createObject(parent, {"widt...

Example from phptherightway.com <?php class Singleton { /** * @var Singleton The reference to *Singleton* instance of this class */ private static $instance; /** * Returns the *Singleton* instance of this class. * * @return Singleton The *Sing...