Tutorial by Examples: en

To select an element by an HTML attribute that contains a specified value use the css locator pattern [attribute*=value] //selects the first element with href value that contains'cont' element(by.css('[href*="cont"]')); //selects the first element with tag h1 and class attribute that...

Sometimes users from other regions than English-speaking have problems with encoding while for example programming a php project. It can be, that the server has another encoding then UTF-8, and if someone want to create a php project in UTF-8 on this server, his text might be shown incorrect. Examp...

$rootScope.$on listeners will remain in memory if you navigate to another controller. This will create a memory leak if the controller falls out of scope. Don't angular.module('app').controller('badExampleController', badExample); badExample.$inject = ['$scope', '$rootScope']; function badExam...

A child theme is identified by WordPress when there is a directory (for example child-theme) inside /wp-content/themes/ with the following files: style.css This file must start with a comment template like this: /* Theme Name: Example Child Author: Me Author URI: https://example.com/ ...

Even if it is not a best practice, sometimes you need to replace assets like CSS or JS files or libraries. Note that the WordPress template overwriting system doesn't work with anything else than .php files, so when we talk about assets we refer to registered assets One example could be the replac...

Sometimes we have requirement of parsing pages, but doing so requires you to be an authorised user. Here is an example which shows you how to do in oracle sign in. import sys import requests import json from bs4 import BeautifulSoup def mprint(x): sys.stdout.write(x) print re...

You cannot access any GUI components from the BackgroudWorker. For example if you try to do something like this Private Sub BackgroundWorker1_DoWork(sender As Object, e As DoWorkEventArgs) TextBox1.Text = "Done" End Sub you will receive a runtime error saying that "Cross-thr...

The entire idea with dependency injection is that a class does not instantiate its dependencies but requests them (through constructor or property). Using Castle the way for specifying the way to resolve a dependency is by using the DependsOn: public class Foo : IFoo { public Foo(IBar bar, st...

1) Services A service is a constructor function that is invoked once at runtime with new, just like what we would do with plain javascript with only difference that AngularJs is calling the new behind the scenes. There is one thumb rule to remember in case of services Services are constructors...

Eclipse debugging starts with what is referred to as Agents. The JVM, which runs the complied .class sources has a feature that allows externally libraries (written in either Java or C++) to be injected into the JVM, just about runtime. These external libraries are referred to as Agents and they ha...

// 1. Instantiate the player. player = ExoPlayer.Factory.newInstance(RENDERER_COUNT); // 2. Construct renderers. MediaCodecVideoTrackRenderer videoRenderer = ... MediaCodecAudioTrackRenderer audioRenderer = ... // 3. Inject the renderers through prepare. player.prepare(videoRenderer, audioRend...

This example creates a MediaSession object when a Service is started. The MediaSession object is released when the Service gets destroyed: public final class MyService extends Service { private static MediaSession s_mediaSession; @Override public void onCreate() { // Insta...

CREATE TABLE [dbo].[ProcessLog]( [LogId] [int] IDENTITY(1,1) NOT NULL, [LogType] [varchar](20) NULL, [StartTime] [datetime] NULL, [EndTime] [datetime] NULL, [RunMinutes] AS (datediff(minute,coalesce([StartTime],getdate()),coalesce([EndTime],getdate()))) This gives run difference in minutes ...

The next example can be used to determine whether a enumeration has the FlagsAttribute specified. The methodology used is based on Reflection. This example will give a True result: Dim enu As [Enum] = New FileAttributes() Dim hasFlags As Boolean = enu.GetType().GetCustomAttributes(GetType(FlagsAt...

The next code illustrates how to find the nearest value of a Enum. First we define this Enum that will serve to specify search criteria (search direction) Public Enum EnumFindDirection As Integer Nearest = 0 Less = 1 LessOrEqual = 2 Greater = 3 GreaterOrEqual = 4 End Enum...

If a particular header file is included more than once in a translation unit (TU), there should not be any compilation problems. This is termed 'idempotence'; your headers should be idempotent. Think how difficult life would be if you had to ensure that #include <stdio.h> was only included ...

Modern headers should be self-contained, which means that a program that needs to use the facilities defined by header.h can include that header (#include "header.h") and not worry about whether other headers need to be included first. Recommendation: Header files should be self-contained...

groups More detailed information about user and group numerical IDs can be found with the id command.

// World physics self.physicsWorld.gravity = CGVectorMake(0, -9.8);

Firstly, we set node category let groundBody: UInt32 = 0x1 << 0 let boxBody: UInt32 = 0x1 << 1 Then add Ground type node and Box type node. let ground = SKSpriteNode(color: UIColor.cyanColor(), size: CGSizeMake(self.frame.width, 50)) ground.position = CGPointMake(CGRectGetMidX(sel...