Tutorial by Examples

In order to search for packages in the databse, searching both in packages' names and descriptions: pacman -Ss string1 string2 ... To install a single package or list of packages (including dependencies), issue the following command: sudo pacman -S package_name1 package_name2 ... source

This Documentation is a small summary of the offical one Prerequisites Your PC must be running a 64-bit version of Windows 10 Anniversary Update build 14393 or later To find your PC's CPU architecture and Windows version/build number, open Settings>System>About. Look for the OS Build ...

This chapter describes how to set up a Docker Container with Jenkins inside, which is capable of sending Docker commands to the Docker installation (the Docker Daemon) of the Host. Effectively using Docker in Docker. To achieve this, we have to build a custom Docker Image which is based on an arbitr...

Given coins of different denominations and a total, in how many ways can we combine these coins to get the total? Let's say we have coins = {1, 2, 3} and a total = 5, we can get the total in 5 ways: 1 1 1 1 1 1 1 1 2 1 1 3 1 2 2 2 3 The problem is closely related to knapsack problem. The o...

Given coins of different denominations and a total, how many coins do we need to combine to get the total if we use minimum number of coins? Let's say we have coins = {1, 5, 6, 8} and a total = 11, we can get the total using 2 coins which is {5, 6}. This is indeed the minimum number of coins require...

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 configure Mail by just adding/changing these lines in the app's .ENV file with your email provider login details, for example for using it with gmail you can use: MAIL_DRIVER=smtp MAIL_HOST=smtp.gmail.com MAIL_PORT=587 [email protected] MAIL_PASSWORD=yourPassword MAIL_E...

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...

Using the library archive Download the JAR and add it to the classpath for your Java project Using a build tool If you are using a build tool like Maven or Gradle: Maven <dependency> <groupId>joda-time</groupId> <artifactId>joda-time</artifactId> ...

$a1 = array("red","green"); $a2 = array("blue","yellow"); print_r(array_merge($a1,$a2)); /* Array ( [0] => red [1] => green [2] => blue [3] => yellow ) */ Associative array: $a1=array("a"=>"red","b"=&...

The caching problem arises from the limitation of finite space. Lets assume our cache C has k pages. Now we want to process a sequence of m item requests which must have been placed in the cache before they are processed.Of course if m<=k then we just put all elements in the cache and it will wo...

This is an example of a web-socket client in javascript. It: Connects to a live demo server. Sends a message. Receives message(s). Disconnects after an interval. var mySocket = null; var serverUrl = 'wss://echo.websocket.org'; // wss: is ws: but using SSL. var oWebSocket = window...

We can now write the following HelloJoda program! import org.joda.time.LocalDate; public class HelloJoda { public static void main(String [] args) { LocalDate today = LocalDate.now(); System.out.println("Hello Joda! Today's date is: " + today); } } Whi...

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,...

If mapping covariantly over only the first argument, or only the second argument, is desired, then first or second ought to be used (in lieu of bimap). first :: Bifunctor f => (a -> c) -> f a b -> f c b first f = bimap f id second :: Bifunctor f => (b -> d) -> f a b -> f...

Preface Instead of starting with a formal definition, the goal is to approach these topic via a row of examples, introducing definitions along the way. The remark section Theory will consist of all definitions, theorems and propositions to give you all informations to faster look up specific aspect...