Tutorial by Examples: basic

Basic subscription to Time.every event with 'unsubscribe'

0.18.0 Model is passed to subscriptions which means that every state change can modify subscriptions. import Html exposing ( Html, div, text, button ) import Html.Events exposing ( onClick ) import Time main : Program Never Model Msg main = Html.program { init = init ,...

Elm Language • Subscriptions

Basic loading and playing a video on the canvas.

The canvas can be used to display video from a variety of sources. This example shows how to load a video as a file resource, display it and add a simple click on screen play/pause toggle. This stackoverflow self answered question How do I display a video using HTML5 canvas tag shows the following ...

html5-canvas • Media types and the canvas

Basic Usage

Given a class as follows: class Cube attr_reader :height, :width, :depth def initialize(args) @height = args[:height] || args[:y] || 1 @width = args[:width] || args[:x] || 1 @depth = args[:depth] || args[:z] || 1 end def volume height * width * depth end ...

rspec • RSpec Expectations

Basic Setup from GitHub

This example goes over how to set up CoreNLP from the GitHub repo. The GitHub code has newer features than the official release, but may be unstable. This example will take you through downloading, building, and running a simple command-line invocation of CoreNLP. Prerequisites: Java 8 or newer....

stanford-nlp • Getting started with stanford-nlp

What is a basic example of dependency injection?

Here is a class (Dog) creating its own dependency (Food): class Dog { public Dog() { var food = new Food(); this.eat(food); } } Here is the same class being injected with its dependency using constructor injection: class Dog { public Dog(Food food) { ...

dependency-injection • Getting started with dependency-injection

Basic AsyncTaskLoader

AsyncTaskLoader is an abstract Loader that provides an AsyncTask to do the work. Here some basic implementation: final class BasicLoader extends AsyncTaskLoader<String> { public BasicLoader(Context context) { super(context); } @Override public String loadInBa...

Android • Loader

Basic Attribute Access using the Dot Notation

Let's take a sample class. class Book: def __init__(self, title, author): self.title = title self.author = author book1 = Book(title="Right Ho, Jeeves", author="P.G. Wodehouse") In Python you can access the attribute title of the class using the dot ...

Python Language • Attribute Access

Basic usage

the spaceship operator returns -1 when the left operator is smaller, 0 when the operators are equal and 1 otherwise: assert 10 <=> 20 == -1 assert 10 <=> 10 == 0 assert 30 <=> 10 == 1 assert 'a' <=> 'b' == -1 assert 'a' <=> 'a'== 0 assert 'b' <=> 'a' == ...

groovy • Spaceship Operator

Hello Web (Basic "Hello World"-type setup)

<html> <head> <script src="https://code.jquery.com/jquery-3.1.0.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script> <script src="https:...

backbone.js • Getting started with backbone.js

Pre get posts filter basic usage

Sometimes you would like to change main WordPress query. Filter pre_get_posts is the way to go. For example using pre_get_posts you can tell main loop to show only 5 posts. Or to show posts only from one category, or excluding any category etc. add_action( 'pre_get_posts', 'my_callback_function' ...

WordPress • Alternating main loop (pre_get_posts filter)

Basic JNI Gradle Config

root: build.gradle buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle-experimental:0.8.0-alpha4' } } allprojects { repositories { jcenter() } } app: build.gradle apply plugin: 'com.andro...

gradle • Including Native Source - Experimental

Basics

Variadic functions are created using the ... ellipses syntax in the argument list of the function definition. function id(...) return end If you called this function as id(1, 2, 3, 4, 5) then ... (AKA the vararg list) would contain the values 1, 2, 3, 4, 5. Functions can take required arg...

Lua • Variadic Arguments

Basic use of a dictionary

Creating a dictionary: set mydict [dict create a 1 b 2 c 3 d 4] dict get $mydict b ; # returns 2 set key c set myval [dict get $mydict $key] puts $myval # remove a value dict unset mydict b # set a new value dict set mydict e 5 Dictionary keys can be nested. dict set mycars mustang colo...

tcl • Dictionaries

Basic Usage

Setting up an instance To use Realm you first need to obtain an instance of it. Each Realm instance maps to a file on disk. The most basic way to get an instance is as follows: // Create configuration RealmConfiguration realmConfiguration = new RealmConfiguration.Builder(context).build(); // O...

Android • Realm

Basic usage

By default, RethinkDB binds all services to 127.0.0.1. So this following example will persist data to the host_data_path on the container's host machine and available to 127.0.0.1 on the standard ports. ServiceFlagDefault PortDriver--driver-port28015Cluster--cluster-port29015HTTP WebUI--http-port80...

rethinkdb • Using RethinkDB with Docker

Get some basic browser data and return it as a JSON object

The following function can be used to get some basic information about the current browser and return it in JSON format. function getBrowserInfo() { var json = "[{", /* The array containing the browser info */ info = [ navigator.userA...

JavaScript • Navigator Object

Basics

GSP supports the usage of <% %> scriptlet blocks to embed Groovy code (this is discouraged): <html> <body> <% out << "Hello GSP!" %> </body> </html> You can also use the <%= %> syntax to output values, like in JSP: <htm...

grails • GSP

Basics of Higher Order Functions

Review Partial Application before proceeding. In Haskell, a function that can take other functions as arguments or return functions is called a higher-order function. The following are all higher-order functions: map :: (a -> b) -> [a] -> [b] filter :: (a -> Bool) -> [a] ...

Haskell Language • Higher-order functions

Retrieve Basic Server Information

SELECT @@VERSION Returns the version of MS SQL Server running on the instance. SELECT @@SERVERNAME Returns the name of the MS SQL Server instance. SELECT @@SERVICENAME Returns the name of the Windows service MS SQL Server is running as. SELECT serverproperty('ComputerNamePhysicalNetBIOS'...

Microsoft SQL Server • Getting started with Microsoft SQL Server

Basic Function Usage

A basic function is defined and executed like this: function hello($name) { print "Hello $name"; } hello("Alice");

PHP • Functions