Tutorial by Examples: le

Modifying an XML File

Import Element Tree module and open xml file, get an xml element import xml.etree.ElementTree as ET tree = ET.parse('sample.xml') root=tree.getroot() element = root[0] #get first child of root element Element object can be manipulated by changing its fields, adding and modifying attributes, a...

XMPP register login and chat basic example

Install openfire or any chat server in your system or on server. For more details click here. Create android project and add these libraries in gradle: compile 'org.igniterealtime.smack:smack-android:4.2.0' compile 'org.igniterealtime.smack:smack-tcp:4.2.0' compile 'org.igniterealtime.smack:smac...

Example of Custom matcher for testing TextView error message

Create a class name ErrorMatcher inside your test package with below code: public class ErrorMatcher { @NonNull public static Matcher<View> withError(final String expectedErrorText) { Checks.checkNotNull(expectedErrorText); return new BoundedMatcher<View, ...

Use find_package and Find.cmake modules

The default way to find installed packages with CMake is the use the find_package function in conjunction with a Find<package>.cmake file. The purpose of the file is to define the search rules for the package and set different variables, such as <package>_FOUND, <package>_INCLUDE_D...

Use pkg_search_module and pkg_check_modules

On Unix-like operating systems, it is possible to use the pkg-config program to find and configure packages that provides a <package>.pc file. In order to use pkg-config, it is necessary to call include(FindPkgConfig) in a CMakeLists.txt. Then, there are 2 possible functions: pkg_search_mo...

Implementing interpolation in a string macro

String macros do not come with built-in interpolation facilities. However, it is possible to manually implement this functionality. Note that it is not possible to embed without escaping string literals that have the same delimiter as the surrounding string macro; that is, although ""&quot...

Dismissible Alerts

To give an alert close functionality, all we need is to add data-dismiss="alert" to our close button. <div class="alert alert-info alert-dismissible" role="alert"> <button type="button" class="close" data-dismiss="alert" aria...

Simple Function to read from Database and return as DataTable

This simple function will execute the specified Select SQL command and return the result as data set. Public Function ReadFromDatabase(ByVal DBConnectionString As String, ByVal SQL As String) As DataTable Dim dtReturn As New DataTable Try 'Open the connection using the connection...

Multiple ResultSets

Unlike a SELECT statement, a Stored Procedure returns multiple result sets. The requires different code to be used for gathering the results of a CALL in Perl, PHP, etc. (Need specific code here or elsewhere!)

Setting variables from an input

Using the /p switch with the SET command you can define variables from an Input. This input can be a user Input (keyboard) : echo Enter your name : set /p name= echo Your name is %name% Which can be simplified like this : set /p name=Enter your name : echo Your name is %name% Or you can...

Product Collection

$ProductCollection=Mage::getModel('catalog/product')->getCollection(); Selecting the specific Attribute $ProductCollection->addAttributeToSelect(array('name', 'product_url', 'small_image')); Selecting the All Attribute $ProductCollection->addAttributeToSelect('*'); Add Filter on ...

Why we need compilation, Flow of events compilation and example?

Q. Why we need compilation? Ans. We need compilation for achieving higher level of efficiency of our Angular applications. Take a look at the following example, // ... compile: function (el, scope) { var dirs = this._getElDirectives(el); var dir; var scopeCreated; dirs.forEach(functi...

Get Collection Object

// get product collection object $productCollection = Mage::getResourceModel('catalog/product_collection'); // get customer collection object $customerCollection = Mage::getResourceModel('customer/customer_collection'); // get order collection object $orderCollection = M...

Reading CSV files

Three main functions available (description from man pages): fromfile - A highly efficient way of reading binary data with a known data-type, as well as parsing simply formatted text files. Data written using the tofile method can be read using this function. genfromtxt - Load data from a t...

Custom Styled Map

<!DOCTYPE html> <html> <head> <title>Styled Maps</title> <meta charset="utf-8"> <style> #map { height: 100%; } </style> </head> <body> <div id="map"></div> <script type="t...

Local variable

data: lv_temp type string. data: ls_temp type sy. data: lt_temp type table of sy.

Global variable

data: gv_temp type string. data: gs_temp type sy. data: gt_temp type table of sy.

Moqs are test doubles

Mocks are meant as test doubles, that allow interactions with the mocks to be validated, they are not meant to replace the system you are testing. Examples will often demonstrate features of Moq as follows: // Create the mock var mock = new Mock<IMockTarget>(); // Configure the mock to d...

Return a File

An ActionResult can return FileContentResult by specifying file path and file type based from extension definition, known as MIME type. The MIME type can be set automatically depending on file type using GetMimeMapping method, or defined manually in proper format, e.g. "text/plain". Sinc...

Mocking IEnumerable

Mocking an interface that inherits from IEnumerable to return canned data is quite straightforward. Assuming the following classes: public class DataClass { public int Id { get; set; } } public interface IEnumerableClass : IEnumerable<DataClass> { } The following approach can ...

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