Tutorial by Examples: ti

Useful information The very beginning of the text field text: let startPosition: UITextPosition = textField.beginningOfDocument The very end of the text field text: let endPosition: UITextPosition = textField.endOfDocument The currently selected range: let selectedRange: UITextRange? = tex...

The system_clock can be used to measure the time elapsed during some part of a program's execution. c++11 #include <iostream> #include <chrono> #include <thread> int main() { auto start = std::chrono::system_clock::now(); // This and "end"'s type is std::chron...

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...

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...

Storing Properties in a XML File The way you store properties files as XML files is very similar to the way you would store them as .properties files. Just instead of using the store() you would use storeToXML(). public void saveProperties(String location) throws IOException{ // make new inst...

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...

Considering the following document : <?xml version='1.0' encoding='UTF-8' ?> <library> <book id='1'>Effective Java</book> <book id='2'>Java Concurrency In Practice</book> </library> One can use the following code to build a DOM tree out of a St...

Method references make excellent self-documenting code, and using method references with Streams makes complicated processes simple to read and understand. Consider the following code: public interface Ordered { default int getOrder(){ return 0; } } public interface Valued&lt...

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...

Gradient Boosting for classification. The Gradient Boosting Classifier is an additive ensemble of a base model whose error is corrected in successive iterations (or stages) by the addition of Regression Trees which correct the residuals (the error of the previous stage). Import: from sklearn.ensem...

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...

If your application is lightweight and simple, it will launch very fast, and with similar speed will appear and disappear splash screen. As soon as splash screen disappearing after Application.Startup method completed, you can simulate application launch delay by following this steps: Open App.x...

ShortcutDescriptionCtrl + amove to the beginning of the lineCtrl + emove to the end of the lineCtrl + kKill the text from the current cursor position to the end of the line.Ctrl + uKill the text from the current cursor position to the beginning of the lineCtrl + wKill the word behind the current cur...

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) { ...

package { import flash.events.TimerEvent; import flash.events.TimerEvent; import flash.utils.Timer; public class RandomTimer extends Timer { public var minimumDelay:Number; public var maximumDelay:Number; private var _count:uint = 0; privat...

This is very useful when setting indent of your code if condition1 if condition2 # some commands here endif endif move your cursor to the 2nd line, then >>, the code will indent to right. Now you can repeat your action by continue to 3rd line, then hit . twice, the result will be if ...

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 ...