Tutorial by Examples: r

Let's assume we have the following struct that defines a City type: type City struct { Name string Temperature int } We can encode/decode City values using the encoding/json package. First of all, we need to use the Go metadata to tell the encoder the correspondence between the...

You need to import System.ComponentModel for using background worker Imports System.ComponentModel Then Declare a private variable Private bgWorker As New BackgroundWorker You need to create two methods for background worker's DoWork and RunWorkerCompleted events and assign them. Private Su...

A common mistake is to declare a slice and start requesting indexes from it without initializing it, which leads to an "index out of range" panic. The following code explains how to recover from the panic without exiting the program, which is the normal behavior for a panic. In most situat...

In order for your public-private keypair to be of use, you must make your public key freely available to others. Be sure that you are working with your public key here since you should never share your private key. You can export your public key with the following command: gpg —armor —export EMAI...

Firstly, you want to go to firebase dashboard and create a new project using the 'Create New Project' button. You want to create a new project by adding the name of your app for example I put mine as 'Cool app name' then choose your region and press 'Create Project' After creating pr...

You need to decide what your forest structure is going to look like before you install Active Directory for the first time. Are you to have just one domain in your forest, or are you going to have multiple domains in your forest? Active Directory can support multiple sites. Generally sites are spl...

To simulate paging using REST you can do the following: Use the $skip=n parameter to skip the first n entries according to the $orderby parameter Use the $top=n parameter to return the top n entries according to the $orderby and $skip parameters. var endpointUrl = "/_api/lists('g...

Very often it happens to deal with models which have something like a published field. Such kind of fields are almost always used when retrieving objects, so that you will find yourself to write something like: my_news = News.objects.filter(published=True) too many times. You can use custom mana...

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max-width is the breakpoint @media (max-width: 1200px) { .navbar-header { float: none; } .navbar-left,.navbar-right { float: none !important; } .navbar-toggle { display: block; } .navbar-collapse { border-top: 1px solid transpar...

jQuery('body').bind('click', function(e) { if(jQuery(e.target).closest('#navbar').length == 0) { // click happened outside of .navbar, so hide var opened = jQuery('.navbar-collapse').hasClass('collapse in'); if ( opened === true ) { jQuery('#navbar2 .navb...

For the layout above your customrow.axml file is as shown below <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_heigh...

Usually to use the converter, we have to define it as resource in the following way: <converters:SomeConverter x:Key="SomeConverter"/> It is possible to skip this step by defining a converter as MarkupExtension and implementing the method ProvideValue. The following example conve...

It is possible to pass multiple bound values as a CommandParameter using MultiBinding with a very simple IMultiValueConverter: namespace MyProject.Converters { public class Converter_MultipleCommandParameters : MarkupExtension, IMultiValueConverter { public object Convert(object...

After All the setup, To make Hello World App To create Simple Blank App, run below command on terminal : ionic start HelloWorld blank // create new project cd HelloWorld // get into HelloWorld directory open the HelloWorld Project in subline/webstrome IDE : Edit ind...

Basics The generated projects contain a basic Hello World-like application already implemented. The main project is the core project, that contains all platform-independent code. This is mandatory, but based on your generation settings you can have several more projects for every platform that you...

<img src="{{ asset('static/images/logo-default.png') }}" alt="Logo"/> <!--Generates path for the file "/web/static/images/logo-default.png" -->

<img src="{{ app.request.getSchemeAndHttpHost() ~ asset('static/images/logo-default.png') }}" alt="Logo"/> <!--Generates path for the file "/web/static/images/logo-default.png" -->