Tutorial by Examples: w

Aggregating with dplyr is easy! You can use the group_by() and the summarize() functions for this. Some examples are given below. CODE: # Aggregating with dplyr library(dplyr) df = data.frame(group=c("Group 1","Group 1","Group 2","Group 2","Group 2&...

The most simple way to create this is to use Alamofire and its UIImageViewExtension. What we need is a tableview with a cell that has an imageView in it and lets call it imageView. In the cellForRowAt: function of the tableView we would download the image and set in the following way: let url = UR...

Sometimes the download takes longer than the cell is being displayed. In this case it can happen, that the downloaded image is shown in the wrong cell. To fix this we can not use the UIImageView Extension. We still will be using Alamofire however we will use the completion handler to display the im...

Use .outerHTML to get the HTML Here is a code sample to get the entire HTML of the website private async void GetHTMLAsync() { var siteHtML = await webView.InvokeScriptAsync("eval", new string[] { "document.documentElement.outerHTML;" }); }

Use .innerText to set the value Here is a code sample to enter text in Search Box on Bing website private async void EnterTextAsync(string enterText) { var functionString = string.Format(@"document.getElementsByClassName('b_searchbox')[0].innerText = '{0}';", enterText); await...

Use .click() to simulate click Here is a code sample to click search button on Bing website private async void SimulateClickAsync() { var functionString = string.Format(@"document.getElementsByClassName('b_searchboxSubmit')[0].click();"); await webView.InvokeScriptAsync("...

I have read and watched a lot of different Dagger2 tutorials but most of them are too long or hard to understand so I decided to write a new simple and short tutorial for Dagger2, I hope you like it. Why we need it? Simplifies access to shared instances: It provides a simple way to obtain refere...

Creating an Snackbar without the need pass view to Snackbar, all layout create in android in android.R.id.content. public class CustomSnackBar { public static final int STATE_ERROR = 0; public static final int STATE_WARNING = 1; public static final int STATE_SUCCESS = 2; publi...

There are packages that include data or are created specifically to disseminate datasets. When such a package is loaded (library(pkg)), the attached datasets become available either as R objects; or they need to be called with the data() function. Gapminder A nice dataset on the development of c...

6 This example will walk the user through creating a job where they can run X++ code within Dynamics AX. There is a node titled Jobs in the Application Object Tree (AOT). This sample can be added under the Jobs node, and then the job can be run. Within Dynamics Ax, open the AOT (Application O...

You can copy and paste this whole plugin to try it. The class skeleton is used from here. class-oop-ajax.cpp <?php /** * The plugin bootstrap file * * This file is read by WordPress to generate the plugin information in the plugin * Dashboard. This file defines a function that start...

Usecase : Login to FB account import org.openqa.selenium.WebDriver; import org.openqa.selenium.firefox.FirefoxDriver; import org.testng.annotations.BeforeClass; import org.testng.annotations.Test; public class FaceBookLoginTest { private static WebDriver driver; HomePage homePage; ...

First in case you are consulting mobile.angular.io the flag --mobile doesn't work anymore. So to start , we can create a normal project with angular cli. ng new serviceWorking-example cd serviceWorking-example Now the important thing, to said to angular cli that we want to use service worker w...

Returns elements from the given collection until the specified condition is true. If the first element itself doesn't satisfy the condition then returns an empty collection. Signature of TakeWhile(): Public static IEnumerable <TSource> TakeWhile<TSource>(this IEnumerable <TSource&gt...

Skips elements based on a condition until an element does not satisfy the condition. If the first element itself doesn't satisfy the condition, it then skips 0 elements and returns all the elements in the sequence. Signature of SkipWhile(): Public static IEnumerable <TSource> SkipWhile<TS...

HP UFT use VBScript, so you can create a message box to display to the user the output results MsgBox "Hello World!" Or you can simple use the Output tab to see the output results of the script print "Hello World!"

In order to clear the selection of those values which are selected using a Select2 drop down,we can use the empty() function. <select id="select2_example"> <option>Option1</option> <option>Option2</option> <option>Option3</option> </select&...

<!-- : Comment This works with both batch script and WSF. The closing tag(-->), only works in WSF. CodeSucessful in both batch and WSF?<!--: CommentTrue<!--: Comment -->False - The closing tag only works for WSF-->False

Once you have node.js installed on your system, you can just follow the procedure below to get a basic web server running with support for both HTTP and HTTPS! Step 1 : Build a Certificate Authority create the folder where you want to store your key & certificate : mkdir conf ...

ADDITIONAL_LOAD_PATHS ARGF ARGV ActionController ActionView ActiveRecord ArgumentError Array BasicSocket Benchmark Bignum Binding CGI CGIMethods CROSS_COMPILING Class ClassInheritableAttributes Comparable ConditionVariable Config Continuation DRb DRbIdConv DRbObject DRbUndu...