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This example shows how a function can accept pipelined input, and iterate efficiently. Note, that the begin and end structures of the function are optional when pipelining, but that process is required when using ValueFromPipeline or ValueFromPipelineByPropertyName. function Write-FromPipeline{ ...

This is an example of a function with the simplest possible support for pipelining. Any function with pipeline support must have at least one parameter with the ParameterAttribute ValueFromPipeline or ValueFromPipelineByPropertyName set, as shown below. function Write-FromPipeline { param( ...

Prevent access to your .htaccess file <Files .htaccess> order allow,deny deny from all </Files> # Rename the file AccessFileName thehtfile.ess Prevent URL attacks # Enable rewrites RewriteEngine On # Block <script> tags from executing in the URL RewriteCond %{QUE...

This is a simple example to display read-only data that is tabular in nature using Qt's Model/View Framework. Specifically, the Qt Objects QAbstractTableModel (sub-classed in this example) and QTableView are used. Implementations of the methods rowCount(), columnCount(), data() and headerData() are...

Assuming we have a TravelReview table with City names as column "title" Criteria criteria = session.createCriteria(TravelReview.class); List review = criteria.add(Restrictions.eq("title", "Mumbai")).list(); System.out.println("Using equals: "...

Should we wish to retrieve only a few columns, we can use the Projections class to do so. For example, the following code retrieves the title column // Selecting all title columns List review = session.createCriteria(TravelReview.class) .setProjection(Projections.property("titl...

If we just try the following: import json from datetime import datetime data = {'datetime': datetime(2016, 9, 26, 4, 44, 0)} print(json.dumps(data)) we get an error saying TypeError: datetime.datetime(2016, 9, 26, 4, 44) is not JSON serializable. To be able to serialize the datetime object p...

The Common Language Runtime (CLR) is a virtual machine environment and part of the .NET Framework. It contains: A portable bytecode language called Common Intermediate Language (abbreviated CIL, or IL) A Just-In-Time compiler that generates machine code A tracing garbage collector that provides...

An object cannot occupy less than 1 byte, as then the members of an array of this type would have the same address. Thus sizeof(T)>=1 always holds. It's also true that a derived class cannot be smaller than any of its base classes. However, when the base class is empty, its size is not necessaril...

How to install the Android Debugging Bridge (ADB) to a Linux system with the terminal using your distro's repositories. Install to Ubuntu/Debian system via apt: sudo apt-get update sudo apt-get install adb Install to Fedora/CentOS system via yum: sudo yum check-update sudo yum install androi...

Starting an Ionic App $ ionic start myapp [template] Starter templates can either come from a named template, a Github repo, a Codepen, or a local directory. A starter template is what becomes the www directory within the Cordova project. Named template starters tabs (Default) sidemen...

$ cat ip.txt address range substitution pattern sample Add Sub Mul Div Lines matching a pattern $ sed '/add/d' ip.txt range substitution pattern sample Add Sub Mul Div $ sed -n '/t/p' ip.txt substitution pattern $ sed -n '/[A-Z]/ s| |/|gp' ip.txt Add/Sub/Mul/Div ...

AWK often used for manipulating entire files containing a list of strings. Let's say file awk_test_file.txt contains: First String Second String Third String To convert all the strings to lower case execute: awk '{ print tolower($0) }' awk_test_file.txt This will result: first string se...

ShortcutDescriptionCtrl + cStop the current jobCtrl + zSuspend the current job (send a SIGTSTP signal)

Converter between boolean and visibility. Get bool value on input and returns Visibility value. NOTE: This converter have already exists in System.Windows.Controls namespace. public sealed class BooleanToVisibilityConverter : IValueConverter { /// <summary> /// Convert bool or Nu...

Show how to create simple converter with parameter via property and then pass it in declaration. Convert bool value to Visibility. Allow invert result value by setting Inverted property to True. public class BooleanToVisibilityConverter : IValueConverter { public bool Inverted { get; set; } ...

Show how to create simple IMultiValueConverter converter and use MultiBinding in xaml. Get summ of all values passed by values array. public class AddConverter : IMultiValueConverter { public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) { ...

Show how to create simple converter and use ConverterParameter to pass parameter to converter. Multiply value by coefficient passed in ConverterParameter. public class MultiplyConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo cult...

If we want to get the x-cordinate of origin of the view, then we need to write like: view.frame.origin.x For width, we need to write: view.frame.size.width But if we add a simple extension to an UIView, we can get all the attributes very simply, like: view.x view.y view.width view.height...

String and char-like variables can be concatenated using ABAP CONCATENATE command. An extra variable for storing the results is required. Example: CONCATENATE var1 var2 var3 INTO result. "result now contains the values of var1, var2 & var3 stringed together without spaces Shorthand ...