Tutorial by Examples: p

Similar to using an Object Declaration, you can define the main function of a Kotlin program using a Companion Object of a class. package my.program class App { companion object { @JvmStatic fun main(args: Array<String>) { println("Hello World") ...

Haskell supports a notion of class extension. For example, the class Ord inherits all of the operations in Eq, but in addition has a compare function that returns an Ordering between values. Ord may also contain the common order comparison operators, as well as a min method and a max method. The =&...

From ES5.1 onwards, you can use the native method Array.prototype.filter to loop through an array and leave only entries that pass a given callback function. In the following example, our callback checks if the given value occurs in the array. If it does, it is a duplicate and will not be copied to...

C++11 In the header file: // widget.h #include <memory> // std::unique_ptr #include <experimental/propagate_const> class Widget { public: Widget(); ~Widget(); void DoSomething(); private: // the pImpl idiom is named after the typ...

$this->helper('customer/data')->getForgotPasswordUrl(); OR Mage::helper('customer/data')->getForgotPasswordUrl();

Detailed instructions on getting titan set up or installed.

You can redirect the debug output to a text file by adding a TextWriterTraceListener to the Debug.Listeners collection. public static void Main(string[] args) { TextWriterTraceListener myWriter = new TextWriterTraceListener(@"debug.txt"); Debug.Listeners.Add(myWriter); Deb...

At its simplest, proc.time() gives the total elapsed CPU time in seconds for the current process. Executing it in the console gives the following type of output: proc.time() # user system elapsed # 284.507 120.397 515029.305 This is particularly useful for benchmarking s...

One package for line profiling is lineprof which is written and maintained by Hadley Wickham. Here is a quick demonstration of how it works with auto.arima in the forecast package: library(lineprof) library(forecast) l <- lineprof(auto.arima(AirPassengers)) shine(l) This will provide you...

return : http://www.example.com/

return : http://www.example.com/my-product.html

Odoo can be installed in three different ways: Packaged installers (easiest, less flexible) Source install (takes sometime to setup, very flexible) An official docker image from docker.com Official packages with all relevant dependency requirements are available on odoo.com. Windows Downlo...

PropertyPossible Valuesdisplaygrid / inline-grid The CSS Grid is defined as a display property. It applies to a parent element and its immediate children only. Consider the following markup: <section class="container"> <div class="item1">item1</div> &lt...

If you want to use your own templates (be it HTML, XML, JSON or any other format) for a TYPO3 extension using fluid templating, you can add additional template paths. An extensions template/partial/layout paths are usually set in TypoScript setup under the properties plugin.tx_<extensionkey>...

Sometimes, it's not possible to list the number of parameters a function could need. Consider a sum function: func sum(_ a: Int, _ b: Int) -> Int { return a + b } This works fine for finding the sum of two numbers, but for finding the sum of three we'd have to write another function: f...

If you want to display to your users meaningful errors instead of simple "sorry, something went wrong", Rails has a nice utility for the purpose. Open the file app/controllers/application_controller.rb and you should find something like this: class ApplicationController < ActionContro...

/** * Parameters * * @param int $int * @param string $string * @param array $array * @param bool $bool */ function demo_param($int, $string, $array, $bool) { } /** * Parameters - Optional / Defaults * * @param int $int * @param string $string * @param ...

If you ever wanted to determine the html content to be printed on a page during run time then, rails has a very good solution for that. It has something called the content_for which allows us to pass a block to a rails view. Please check the below example, Declare content_for <div> <%=...

You can run tasks in series, by passing a second parameter to gulp.task(). This parameters is an array of tasks to be executed and completed before your task will run: var gulp = require('gulp'); gulp.task('one', function() { // compile sass css }); gulp.task('two', function() { // ...

Drupal Console The new CLI for Drupal. A tool to generate boilerplate code, interact with and debug Drupal. First, we need to install Drupal Console. Drupal Console is needed not only for this time, but for future installations. # Run this in your terminal to get the latest project version: cur...