Tutorial by Examples: d

In this example I will go through the implementation of the perceptron model in C++ so that you can get a better idea of how it works. First things first it is a good practice to write down a simple algorithm of what we want to do. Algorithm: Make a the vector for the weights and initialize it ...

By default, all attributes are escaped (replacing special characters with escape sequences) to prevent attacks such as cross site scripting. If you need to use special characters you can use != instead of =. Code: div(escaped="<code>") div(unescaped!="<code>") R...

IDs may be defined using a #idname syntax: Code: a#main-link Result: <a id="main-link"></a> Since div's are such a common choice of tag, it is the default if you omit the tag name: Code: #content Result: <div id="content"></div>

To add for instance a directory scripts to the distribution package: Add to the project a folder scripts On top of the build.sbt, add: import NativePackagerHelper._ In build.sbt, add a mapping to the new directory: mappings in Universal ++= directory("scripts") B...

LaraDock is a Laravel Homestead like development environment but for Docker instead of Vagrant. https://github.com/LaraDock/laradock Installation *Requires Git and Docker Clone the LaraDock repository: A. If you already have a Laravel project, clone this repository on your Laravel root director...

You can add new extensions to require() by extending require.extensions. For a XML example: // Add .xml for require() require.extensions['.xml'] = (module, filename) => { const fs = require('fs') const xml2js = require('xml2js') module.exports = (callback) => { // ...

This is an example of Serial Document Middleware In this example, We will write a middleware that will convert the plain text password into a hashed password before saving it in database. This middleware will automatically kick in when creating new user or updating existing user details. FILENA...

This example shows how to find number of days between two dates. A date is specified by year/month/day of month, and additionally hour/minute/second. Program calculates number of days in years since 2000. #include <iostream> #include <string> #include <chrono> #include <cti...

Retrieves the information pertaining to the currently logged in user, and places it in the global variable $current_user This function does not accept any parameters. Usage: <?php wp_get_current_user(); ?> Example: <?php $current_user = wp_get_current_user(); echo 'Usernam...

Here we create a basic hello world server using Express. Routes: '/' '/wiki' And for rest will give "404" , i.e. page not found. 'use strict'; const port = process.env.PORT || 3000; var app = require('express')(); app.listen(port); app.get('/',(req,res)=>res.send(...

It's quite common to want to check the status of the various partitions/drives on your server/computer to see how full they are. The following command is the one you'll want to run: df -h This will produce output similar to the following: [root@mail ~]# df -h Filesystem Size Used A...

// GET: Student/Edit/5 // It is receives a get http request for the controller Student and Action Edit with the id of 5 public ActionResult Edit(int? id) { // it good practice to consider that things could go wrong so,it is wise to have a validation in the controller ...

The void generator class: public class VoidGenerator extends ChunkGenerator { @SuppressWarnings("deprecation") public byte[] generate(World w, Random rand, int x, int z) { byte[] result = new byte[32768]; //chunksized array filled with 0 - Air //Build a...

A frequent reason why your read operation may not work is because your security rules reject the operation, for example because you're not authenticated (by default a database can only be accessed by an authenticated user). You can see these security rule violations in the logcat output. But it's e...

(ns so-doc.events (:require [goog.dom :as dom] [goog.events :as events])) (defn handle-click [event] ;an event object is passed to all events (js/alert "button pressed")) (events/listen (dom/getElement "button"); This is the dom element the event comes fro...

$collection = Mage::getModel('catalog/product') ->getCollection() ->setPageSize(20) ->setCurPage(1);

Large scale applications often need different properties when running on different environments. we can achieve this by passing arguments to NodeJs application and using same argument in node process to load specific environment property file. Suppose we have two property files for different enviro...

Separate the construction of a complex object from its representation so that the same construction process can create different representations and and provides a high level of control over the assembly of the objects. In this example demonstrates the Builder pattern in which different vehicles ar...

if true; then echo Always executed fi if false; then echo Never executed fi

Search role in Ansible Galaxy ansible-galaxy search role_name Install role from Ansible Galaxy ansible-galaxy install role_name More help ansible-galaxy --help