Tutorial by Examples: s

Loading ESRI CSS

Starting with version 3.2 of the ArcGIS API for JavaScript, developers must include an additional Cascading Style Sheet (CSS) file: esri.css. The URL for this file is: // versions 3.11 and forward <link rel="stylesheet" href="https://js.arcgis.com/API-VERSION/esri/css/esri.css&...

arcgis • ArcGIS JS API

Loading Dojo specific CSS

The esri.css file does not include the CSS for various Dojo widgets or themes like tundra or claro; those files must be included separately. Exceptions are the Grid and RangeSlider, which are used by widgets in the API. Grid styles must be explicitly included. For instance, this CSS file would be i...

arcgis • ArcGIS JS API

Use generics to enhance type-safety

Let's take this example without using generics protocol JSONDecodable { static func from(_ json: [String: Any]) -> Any? } The protocol declaration seems fine unless you actually use it. let myTestObject = TestObject.from(myJson) as? TestObject Why do you have to cast the result to T...

Swift Language • Generics

Basic test

import { BrowserModule } from '@angular/platform-browser'; import { CommonModule } from '@angular/common'; import { FormsModule } from '@angular/forms'; import { HttpModule } from '@angular/http'; import { Component, DebugElement } from '@angular/core'; import { dispatchEvent } from "@an...

Angular 2 • Testing ngModel

phpversion()

Introduction When working with various libraries and their associated requirements, it is often necessary to know the version of current PHP parser or one of it's packages. This function accepts a single optional parameter in the form of extension name: phpversion('extension'). If the extension in...

PHP • Debugging

Basic Query

/* Define a query named q1 for the Customer table */ DEFINE QUERY q1 FOR Customer. /* Open the query for all Customer records where the state is "tx" */ OPEN QUERY q1 FOR EACH Customer WHERE Customer.state ='TX'. ...

progress-4gl • Queries

Multi-Tables Query

This query will join three tables: Customer, Order and Orderline. The use of the OF statement as in childtable OF parenttable assumes that indexes are constructed in a specific way. That is the case in the sports2000-database. DEFINE QUERY q1 FOR Customer, Order, Orderline. OPEN QUERY q1 FOR EA...

progress-4gl • Queries

Using informats to read data

Informats are used to tell SAS how to read in the data and are identified with an informat statement. data test; infile test.csv; informat id $6. date mmddyy10. cost comma10.2 ; input @1 id @7 date @20 cost ; run; Informats and Format...

sas • SAS Formats

Installation and Setup

Keras is a high-level neural networks library, written in Python and capable of running on top of either TensorFlow or Theano. It was developed with a focus on enabling fast experimentation. Being able to go from idea to result with the least possible delay is key to doing good research. Use Keras ...

keras • Getting started with keras

Accessing variables

In Twig templates variables can be accessed using double curly braces notation {{ variableName }}. Basic example of greeting user <!DOCTYPE html> <html> <body> <span>Hello {{ name }}</span> </body> </html> Accessing array elements Twig as ...

twig • Basic template syntax

Filters

Variables can be modified using filters. To apply filter to variable follow variable name with pipe | and filter name: {{ variable|filterName }} For example to display variable value in uppercase use construct. {{ variable|upper }} Filters can be parametrized. Filter parameters are passed in...

twig • Basic template syntax

Find a PowerShell module using a pattern

To find a module that ends with DSC Find-Module -Name *DSC

PowerShell • Package management

Create the default PowerShell Module Reposity

If for some reason, the default PowerShell module repository PSGallery gets removed. You will need to create it. This is the command. Register-PSRepository -Default

PowerShell • Package management

Install a Module by name

Install-Module -Name <name>

PowerShell • Package management

Uninstall a module my name and version

Uninstall-Module -Name <Name> -RequiredVersion <Version>

PowerShell • Package management

show_error()

This function will display the error message supplied to it using the following error template: Path - application/errors/error_general.php The optional parameter $status_code determines what HTTP status code should be sent with the error. Syntax show_error($message, $status_code, $heading = '...

codeigniter • Error Handling

show_404()

This function will display the 404 error message supplied to it using the following error template: Path - application/errors/error_404.php The function expects the string passed to it to be the file path to the page that isn't found. Note that CodeIgniter automatically shows 404 messages if cont...

codeigniter • Error Handling

log_message()

This function lets you write messages to your log files. You must supply one of three "levels" in the first parameter, indicating what type of message it is (debug, error, info), with the message itself in the second parameter. Example: if ($some_var == "") { log_message('...

codeigniter • Error Handling

Basic spring security with annotation, SQL datasource

@Configuration public class AppSecurityConfig extends WebSecurityConfigurerAdapter { @Autowired DataSource dataSource; @Autowired public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception { auth.jdbcAuthentication().dataSource(dataSource) .pa...

spring-security • Spring Security config with java (not XML)

What is Selenium Grid?

Selenium-Grid is a configuration of Hub & Node which allows you to run your tests on different machines against different browser combinations in parallel. That is, running multiple tests at the same time against different machines running different browsers on different operating systems. In ot...

selenium-grid • Getting started with selenium-grid