Tutorial by Examples: ti

To begin using WebDriver you will need to obtain the relevant Driver from the Selenium site: Selenium HQ Downloads. From here you need to download the driver relevant to the browser(s) and/or platform(s) you are trying to run WebDriver on, e.g. if you were testing in Chrome the Selenium site will di...

The Vim on your machine—if there is one—is very likely to be a "small" build that lacks useful features like clipboard support, syntax highlighting or even the ability to use plugins. This is not a problem if all you need is a quick way to edit config files but you will soon hit a number ...

There are several ways to go about installing matplotlib, some of which will depend on the system you are using. If you are lucky, you will be able to use a package manager to easily install the matplotlib module and its dependencies. Windows On Windows machines you can try to use the pip package ...

XML is a syntax, which means a simple text editor is enough to get started. However, having an XML-specific editor that shows you when and where your document is not well-formed is almost indispensable for productivity. Such editors may also allow you to validate XML documents against an XML Schema...

To install the cordova command-line tool, follow these steps: Download and install Node.js. On installation you should be able to invoke node and npm on your command line. To see if Node is installed, open your CLI (command line interface). For Windows it's the Windows Command Prompt, for ...

On most GNU+Linux operating systems, PostgreSQL can easily be installed using the operating system package manager. Red Hat family Respositories can be found here: https://yum.postgresql.org/repopackages.php Download the repository to local machine with the command yum -y install https://downloa...

Ways to get Highcharts: Load directly from Highcharts CDN Download files from official website. Through npm; npm install highcharts Through bower; bower install highcharts To load the main library from vendor's CDN, simply add the following to your code: <script src="ht...

The JavaFX APIs are available as a fully integrated feature of the Java SE Runtime Environment (JRE) and the Java Development Kit (JDK ). Because the JDK is available for all major desktop platforms (Windows, Mac OS X, and Linux), JavaFX applications compiled to JDK 7 and later also run on all...

Models are typically defined in the models.py file under your application subdirectory. The Model class of django.db.models module is a good starting class to extend your models from. For example: from django.db import models class Book(models.Model): title = models.CharField(max_length=100...

Assuming python and python3 are both installed, it is possible to create a virtual environment for Python 3 even if python3 is not the default Python: virtualenv -p python3 foo or virtualenv --python=python3 foo or python3 -m venv foo or pyvenv foo Actually you can create virtual ...

Getting ("a", 1) ^. _1 -- returns "a" ("a", 1) ^. _2 -- returns 1 Setting ("a", 1) & _1 .~ "b" -- returns ("b", 1) Modifying ("a", 1) & _2 %~ (+1) -- returns ("a", 2) both Traversal (1, 2) & bot...

1. Install the Ionic Framework and Cordova (since Ionic apps are based on Cordova) using npm (the Node Package Manager): Make sure you have an up-to-date version of Node.js installed on your system. If you don't have Node.js installed, you can install it from here. Also, for Mac users, having the ...

Requirements: Installed Java JDK or JRE (version 7 or higher for Gradle 3.x version) Installation steps: Download Gradle distribution from the official web site Unpack the ZIP Add the GRADLE_HOME environment variable. This variable should point to the unpacked files from the previous step. Ad...

Properties are members of an object. Each named property is a pair of (name, descriptor). The name is a string that allows access (using the dot notation object.propertyName or the square brackets notation object['propertyName']). The descriptor is a record of fields defining the bevahiour of the pr...

By default error message appears below textbox in <div class="help-block"></div> on keyUp or after pressing submit button if any validation constraints aren't met. Sometimes we want a message on submit only i.e. no validation at onKeyup event. Let's check yii2/widgets/ActiveF...

Binary releases of Maven can be downloaded from the Maven website. The binary comes as a zip archive or as a tar.gz archive. After downloading it, the instructions from the install page can be followed: Ensure the JAVA_HOME environment variable is set and points to your JDK installation (not JRE...

An interface in Kotlin can have default implementations for functions: interface MyInterface { fun withImplementation() { print("withImplementation() was called") } } Classes implementing such interfaces will be able to use those functions without reimplementing cl...

Download Qt for Linux Open Source Version Go to https://www.qt.io/download-open-source/ and click on Download Now, make sure that you are downloading the Qt installer for Linux. A file with the name qt-unified-linux-x-online.run will be downloaded, then add exec permission chmod +x qt-unified-...

The easiest way to get writing your first XAML is to install Microsoft Visual Studio. This is avaliable free from Microsoft. Once installed you can create a new project, of type WPF Application, either with a VB.NET or C# code. This is similar to windows forms in the sense that you have a series o...

There are several ways methods can be inherited public abstract class Car { public void HonkHorn() { // Implementation of horn being honked } // virtual methods CAN be overridden in derived classes public virtual void ChangeGear() { // Implementation of gear...