Tutorial by Examples: ce

When you define a class or module, the implicit receiver becomes a reference to the class itself. For example: puts "I am #{self}" class Example puts "I am #{self}" end Executing the above code will print: "I am main" "I am Example"

Importing the framework Swift import Contacts Objective-C #import <Contacts/Contacts.h> Checking accessibility Swift switch CNContactStore.authorizationStatusForEntityType(CNEntityType.Contacts){ case .Authorized: //access contacts case .Denied, .NotDetermined: //request permissio...

Applying a filter To access contacts, we should apply a filter of type NSPredicate to our contactStore variable which we defined it in Authorizing Contact Access example. For example, here we want to sort out contacts with name matching with our own: Swift let predicate = CNContact.predicateForCo...

To receive push notifications we are supposed to tell the plugin to listen to incoming push notifications. This step is done after initialization & registration import { Push, NotificationEventResponse} from "ionic-native"; //the push element is created in the initial...

Log on to the Azure classic portal. In the left navigation pane of the portal, click Service Bus. In the lower pane of the portal, click Create. In the Add a new namespace dialog, enter a namespace name. The system immediately checks to see if the name is available. After...

Create a new console application and add a reference to the Service Bus NuGet package, similar to the sending application above. Add the following using statement to the top of the Program.cs file. using Microsoft.ServiceBus.Messaging; Add the following code to the Main method, set ...

The simple use-case is to refer to a single icon in its normal size: <i class="fa fa-camera-retro"></i> (View result in this fiddle.) Create an empty tag (it is recommended to use <i> used for that) and assign class "fa" and the class corresponding to the desi...

This sample demonstrates how to import the worksheet Azure Excel file blob to DB on the Azure SQL Server and how to export it from DB to Azure Excel blob. Prerequisites: Microsoft Visual Studio 2015 version Open XML SDK 2.5 for Microsoft Office An Azure storage account Azure SQL Server Add...

In this example I define two custom function. 1 - countryFilter function get's the country short code as input and return the country full name. 2 - _countPrinterTasks is used to calculate the no of tasks assigned to a particular user. <?php namespace DashboardBundle\Twig\Extension; use ...

Phalcon uses db service by default to obtain connection to databases. Assuming you have an conguration file with database field set up, you can include or autoload following code to obtain connection with database for your project: $di->set('db', function () use ($config) { $dbconf = $conf...

Open Storyboard where you have your ViewController with TableView: Add prototype cell (if there is no cell added before): Customize cell as you want (in my case there is custom UIImage and Label): Remember to set height of the cell. To do it select your whole TableView and from the Properties...

If you want to detect when your user enters a specific location, you can create a fence for the specific location with a radius you want and be notified when your user enters or leaves the location. // Your own action filter, like the ones used in the Manifest private static final String FENCE_REC...

// iterating over items in collection foreach ($orders as $singleOrder) { // do something with individual objects var_dump($singleOrder->getData()); } // get first/last item in collection $first = $orders->getFirstItem(); $last = $orders->getLastItem();

This code places the hint text at form load and manipulates it as follows: C# private void Form_load(object sender, EventArgs e) { textBox.Text = "Place Holder text..."; } private void textBox_Enter(object sender, EventArgs e) { if(textBox.Text == "Place Holder text....

A processing instruction is used to directly pass on some information or instruction to the application via the parser. <?my-application some instructions ?> The token after the initial question mark (here my-application) is called the target and identifies the application at which the ins...

In most cases, the range_lookup is used as FALSE (an exact match). The default for this parameter is TRUE - it is less commonly used in this form, but this example shows one usecase. A supermarket gives a bonus based on the customers monthly spend. If the customer spends 250 EUR or more in a mon...

Simple, Inline Equations You can do a simple inline equation by using $an equation here$. For example, you might do $\lim\limits_{n \to \infty} \frac{1}{2^n} i\bar z$ which, if we put a little fake text around it, gives Numbered, Centered Equations When writing papers or other documents, ...

Matrices You must always use the amsmath package if you are going to use the following commands. There are four main types of matrix, as shown in the code below: \begin{matrix} a & b \\ c & d \end{matrix} \quad \begin{pmatrix} a & b \\ c & d \end{pmatrix} ...

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sudo yum install libpng-devel