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A regular expression with grouped parts can be used as an extractor: scala> val address = """(.+):(\d+)""".r address: scala.util.matching.Regex = (.+):(\d+) scala> val address(host, port) = "some.domain.org:8080" host: String = some.domain.org por...

Executing code after 1.5 seconds: Handler handler = new Handler(); handler.postDelayed(new Runnable() { @Override public void run() { //The code you want to run after the time is up } }, 1500); //the time you want to delay in milliseconds Executing code repeatedly every...

In Objective-C, method swizzling is the process of changing the implementation of an existing selector. This is possible due to the way Selectors are mapped on a dispatch table, or a table of pointers to functions or methods. Pure Swift methods are not dynamically dispatched by the Objective-C run...

This filter is very useful. One of the common problems for developers is how to include templates in plugins they develop. The filter is applied immediately after wordpress locates the appropriate template in the active child/parent theme using the wp hierarchy. Be careful to define when you want ...

add_filter('template_include', 'custom_function'); function custom_function($template){ /* * This example is a little more advanced. * It will check to see if $template contains our post-type in the path. * If it does, the theme contains a high level templat...

function randomMinMax(min:Number, max:Number):Number { return (min + (Math.random() * Math.abs(max - min))); } This function is called by passing a range of minimum and maximum values. Example: randomMinMax(1, 10); Example outputs: 1.661770915146917 2.5521070677787066 9.4362709657...

More complicated tests sometimes need to have things set up before you run the code you want to test. It is possible to do this in the test function itself, but then you end up with large test functions doing so much that it is difficult to tell where the setup stops and the test begins. You can als...

The PrettyPrinter utility will 'pretty print' XML documents. The following code snippet pretty prints unformatted xml: import scala.xml.{PrettyPrinter, XML} val xml = XML.loadString("<a>Alana<b><c>Beth</c><d>Catie</d></b></a>") val formatt...

The library CL-PPCRE provides the function split which allows us to split strings in substrings that match a regular expression, discarding the parts of the string that do not. (cl-ppcre:split "\\." "127.0.0.1") ;; => ("127" "0" "0" "1&quot...

Defining Strings in the strings.xml file also allows for string formatting. The only caveat is that the String will need to be dealt with in code like below, versus simply attaching it to a layout. <string name="welcome_trainer">Hello Pokémon Trainer, %1$s! You have caught %2$d Poké...

To find all the files of a certain extension within the current path you can use the following find syntax. It works by making use of bash's built-in glob construct to match all the names having the .extension. find /directory/to/search -maxdepth 1 -type f -name "*.extension" To find ...

It is also possible to write a context manager using generator syntax thanks to the contextlib.contextmanager decorator: import contextlib @contextlib.contextmanager def context_manager(num): print('Enter') yield num + 1 print('Exit') with context_manager(2) as cm: # the ...

public class Dog : RealmObject { public string Name { get; set; } public int Age { get; set; } } var realm = Realm.GetInstance(); realm.Write(() => { var mydog = realm.CreateObject<Dog>(); mydog.Name = "Rex"; mydog.Age = 1; }); var pups = real...

Since C# 6.0 exceptions can be filtered using the when operator. This is similar to using a simple if but does not unwind the stack if the condition inside the when is not met. Example try { // ... } catch (Exception e) when (e.InnerException != null) // Any condition can go in here. { ...

Example is the main part of Documentation, it is thus important to provide clear and useful examples. Good examples are self-contained and succinct. Examples usually would have code for users to understand the topic better. Refer to the Help Center for more information.

Within a catch block the throw keyword can be used on its own, without specifying an exception value, to rethrow the exception which was just caught. Rethrowing an exception allows the original exception to continue up the exception handling chain, preserving its call stack or associated data: try...

SRXMPPDemo Download the example and all the classes here - https://github.com/SahebRoy92/SRXMPPDemo A demo on XMPP in Objective C, with various simple and complex features implemented in it. All the features of XMPP is done by "in band" xmpp functions. Few features this project contains...

Define your class that will represent your custom error. public class ErrorDto { public int Code { get; set; } public string Message { get; set; } // other fields public override string ToString() { return JsonConvert.SerializeObject(this); } } Then put nex...

A shell script is a very versatile way to extend your build to basically anything you can think of. As an exmaple, here is a simple script to compile protobuf files and add the result java files to the source directory for further compilation: def compilePb() { exec { // NOTICE: grad...

With the rgdal package it is possible to import and export shapfiles with R. The function readOGR can be used to imports shapfiles. If you want to import a file from e.g. ArcGIS the first argument dsn is the path to the folder which contains the shapefile. layer is the name of the shapefile without...