Tutorial by Examples: u

This tag is a duplicate of playframework. Please post any content that you would post here in that tag, with the version set to “2.0”

You can also use this code to setup an LED with a button switch with a pull up resistor, this could preferably be with the next step after setting up the intial LED controller int buttonState = 0; // variable for reading the pushbutton status void setup() { // initialize the LED pin as an ...

Joda-Time is a robust alternative to the Java date and time classes. Prior to Java SE 8, the standard Java date and time classes like java.util.Calendar are difficult to use and prone to errors. Joda-Time emerged as the de-facto standard library for date and time manipulation in many open-source-pr...

Adding the aurelia-configuration to a cli application sometimes produces a build error. This is caused by a missing dependency so we simply add the dependency to the build bundle. Try the following: npm install deep-extend --save npm install aurelia-configuration --save Now add the followi...

The official site of angular-ui-bootstrap is here. Follow the below instructions in order. The list of files that are to be downloaded is in this link Include all references in this order. angular.js angular-animate.js ui-bootstrap-tpls-2.2.0.js (Reference to UI Bootstrap ) angular-sanitiz...

It's also possible to add multiple object types to a Static Dispatch function. fn mammal_speak<T: Person + Dog>(mammal: &T) { println!("{0}", mammal.speak()); } fn main() { let person = Person {}; let dog = Dog {}; mammal_speak(&person); mammal...

Two-element tuples (,) is an example of a type that has a Bifunctor instance. instance Bifunctor (,) where bimap f g (x, y) = (f x, g y) bimap takes a pair of functions and applies them to the tuple's respective components. bimap (+ 2) (++ "nie") (3, "john") --> (5,...

A LocalDate is a date without a timezone. Consider using them when you are only concerned with the year, month, and day of month and are not interested in an exact time. For example, when we write our date of birth (such as 1960-01-01) we don't care about the timezone in which it happened.

Bifunctor is the class of types with two type parameters (f :: * -> * -> *), both of which can be covariantly mapped over simultaneously. class Bifunctor f where bimap :: (a -> c) -> (b -> d) -> f a b -> f c d bimap can be thought of as applying a pair of fmap operation...

There's a useful set of type combinators for building big Functors out of smaller ones. These are instructive as example instances of Functor, and they're also useful as a technique for generic programming, because they can be used to represent a large class of common functors. The identity functor...

The Proxy :: k -> * type, found in Data.Proxy, is used when you need to give the compiler some type information - eg, to pick a type class instance - which is nonetheless irrelevant at runtime. {-# LANGUAGE PolyKinds #-} data Proxy a = Proxy Functions which use a Proxy typically use Scoped...

Below code is basic example of spark launcher.This can be used if spark job has to be launched through some application. val sparkLauncher = new SparkLauncher //Set Spark properties.only Basic ones are shown here.It will be overridden if properties are set in Main class. sparkLauncher.setSparkHom...

Overview: There are typically two types of SAS Deployments: SAS Foundation only installation (BASE SAS). This is typically is installed on a PC. It does not run any server software. SAS Planned Deployment for their server architecture which will install the SAS server environment along wit...

Description: mov copies values of bits from source argument to destination argument. Common source/destination are registers, usually the fastest way to manipulate values with[in] CPU. Another important group of source_of/destination_for values is computer memory. Finally some immediate values m...

For a circular View (in this case TextView) create a drawble round_view.xml in drawble folder: <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval"> <solid...

Php arrayiterator allows you to modify and unset the values while iterating over arrays and objects. Example: $array = ['1' => 'apple', '2' => 'banana', '3' => 'cherry']; $arrayObject = new ArrayObject($array); $iterator = $arrayObject->getIterator(); for($iterator; $iterator-...

To declare a single namespace with hierarchy use following example: namespace MyProject\Sub\Level; const CONNECT_OK = 1; class Connection { /* ... */ } function connect() { /* ... */ } The above example creates: constant MyProject\Sub\Level\CONNECT_OK class MyProject\Sub\Level\Connection...

GridView definition on ASPX page As shown below, first column of grid is defined as a checkbox column, which is conditionally cleared as shown in further examples below (the header checkbox is only for selecting/un-selecting all rows on current page, but same can be extended for all on grid easily)...

MongoDB stores data records as BSON documents. BSON is the binary representation of JSON. $ python >>> from pymongo import MongoClient >>> client = MongoClient() >>> col = client.mydb.test Create Insert a single document insert_one(document) >>> result = ...

Although not necessary in PHP however it is a very good practice to initialize variables. Uninitialized variables have a default value of their type depending on the context in which they are used: Unset AND unreferenced var_dump($unset_var); // outputs NULL Boolean echo($unset_bool ? "tr...