Tutorial by Examples: el

A Semantic Model offers a deeper level of interpretation and insight of code compare to a syntax tree. Where syntax trees can tell the names of variables, semantic models also give the type and all references. Syntax trees notice method calls, but semantic models give references to the precise locat...

Node Version Manager (nvm) greatly simplifies the management of Node.js versions, their installation, and removes the need for sudo when dealing with packages (e.g. npm install ...). Fish Shell (fish) "is a smart and user-friendly command line shell for OS X, Linux, and the rest of the family&...

When I first started managing the keyboard I would use separate Notifications in each ViewController. Notification Method (Using NSNotification): class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() NSNotificationCenter.defaultCenter().a...

Many tasks require elevated privileges. You can elevate user privileges to Administrator level for your batch runtime using a shortcut: Press alt+ and the batch file to a selected folder to create a shortcut. Right click and select "Properties". Select the "Shortcut&quo...

The following batch file will popup a UAC Prompt allowing you to accept elevated Administrator privileges for the batch session. Add your tasks code to :usercode section of the batch, so they run with elevated privileges. @echo off setlocal EnableDelayedExpansion :: test and acquire admin rights ...

HTML <canvas id="canvas" width=300 height=100 style="background-color:#808080;"> </canvas> Javascript var canvas = document.getElementById("canvas"); var ctx = canvas.getContext("2d"); ctx.font = "34px serif"; ctx.textAlign = &qu...

This is a relatively common mistake: You created an rect element, in a bar chart for instance, and you want to add a text label (let's say, the value of that bar). So, using the same variable that you used to append the rect and define its x and y position, you append your text element. Very logic, ...

Arrow is, vaguely speaking, the class of morphisms that compose like functions, with both serial composition and “parallel composition”. While it is most interesting as a generalisation of functions, the Arrow (->) instance itself is already quite useful. For instance, the following function: sp...

Executes the requests with the specified delay in milliseconds, meaning that if any subsequent request happens after the previous has been queued, the first one will be skiped. The feature is available starting from JSF 2.2: Bean.java @ManagedBean @ViewScoped public class Bean { publi...

Set a convenience method in your base model namespace Base; class Model extends \Phalcon\Mvc\Model { public function sanitize($attr, $filterName) { $filter = $this->getDI()->get('filter'); $this->$attr = $filter->sanitize($this->$attr, $filterName); ...

#include <SPI.h> #define CSPIN 1 void setup() { pinMode(CSPIN, OUTPUT); // init chip select pin as an output digitalWrite(CSPIN, 1); // most slaves interpret a high level on CS as "deasserted" SPI.begin(); SPI.beginTransaction(SPISettings(1000000, MSBFIRST, SPI_MO...

import xlsxwriter # sample data chart_data = [ {'name': 'Lorem', 'value': 23}, {'name': 'Ipsum', 'value': 48}, {'name': 'Dolor', 'value': 15}, {'name': 'Sit', 'value': 8}, {'name': 'Amet', 'value': 32} ] # excel file path xls_file = 'chart.xlsx' # the workbook w...

How to create User Model Class namespace App\Model\Table; use Cake\ORM\Table; class UsersTable extends Table { public function initialize(array $config) { $this->table('users'); //define table name $this->displayField('username'); // unique or other special field of...

There are 4 types of associations(relationships) we can define in CakePHP class PostsTable extends Table { public function initialize(array $config) { // table initialization code should be here $this->belongsTo('Authors', [ 'className' => 'Authors', ...

Dependencies To install electron you must first install Node.js, which comes with npm. How to install it? Use npm: # Install the `electron` command globally in your $PATH npm install electron -g # OR # Install as a development dependency npm install electron --save-dev

function onButtonClick() { navigator.bluetooth.requestDevice({filters: [{services: ['battery_service']}]}) .then(device => { // Connecting to GATT Server... return device.gatt.connect(); }) .then(server => { // Getting Battery Service... return server.getPri...

All proxy services events are logged in the wso2carbon log file (located in %CARBON_HOME%/repository/logs). If you want, you can have separate log files for each proxy service. Keep in mind, though, that they will still be logged in wso2carbon log file as well. To do so, you should change the log4...

In IDE Jaspersoft Studio (JSS) or the older version iReport Designer it is sufficient to press Preview. The JasperReports design file .jrxml will automatically be compiled to .jasper in same folder as .jrxml if no errors are present. Another way is to press "Compile Report" button in JSS...

A link to any text by using typolink object lib.link = TEXT lib.link { value = Here is link text typolink { #You can give page uid or any external url here parameter = http://www.example.com/ #Target of link extTarget = _blank ...

The following C code uses the OpenMP parallel programming model to write the thread ID and number of threads to stdout using multiple threads. #include <omp.h> #include <stdio.h> int main () { #pragma omp parallel { // ID of the thread in the current team ...