Tutorial by Examples: dse

Define custom exception, raise it and see where it comes from

To illustrate this, here is a function that has 3 different "wrong" behaviors parameter is completely stupid: we use a user-defined expression parameter has a typo: we use Oracle standard NO_DATA_FOUND error another, but not handled case Feel free to adapt it to your standards: DE...

plsql • Exception Handling

Jquery - Select2 Installation and Setup

You can include/install Select2 in one of the two ways Directly using CDN's in your project under the head section of your project. link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet"/> <script src="https://cdnjs...

jquery-select2 • Getting started with jquery-select2

Installation and Setup

Add the rx-android dependency as well as a current version of rx-java to the build.gradle. Because RxAndroid releases are few and far between, it is recommended you also explicitly depend on RxJava's latest version for bug fixes and new features. Rx1 compile 'io.reactivex:rxandroid:1.2.1' co...

rx-android • Getting started with rx-android

OpenSSL commands examples

Inspect ssl certificate openssl x509 -in server.crt -noout -text Generate server key openssl genrsa -out server.key 2048 Generate csr openssl req -out server.csr -key server.key -new

openssl • Getting started with openssl

Extending nested selectors

You may also extend nested selectors. The below Less .otherChild{ color: blue; } .otherParent{ color: red; .otherChild{ font-size: 12px; color: green; } } .parent{ .nestedParagraph{ &:extend(.otherParent .otherChild); } } Will compile to .otherChild...

less • Extend

Define custom exception, raise it and see where it comes from

To illustrate this, here is a function that has 3 different "wrong" behaviors the parameter is completely stupid: we use a user-defined expression the parameter has a typo: we use Oracle standard NO_DATA_FOUND error another, but not handled case Feel free to adapt it to your standa...

plsql • Exception Handling

Scan available peripherals only with interested services

Swift: let services = [CBUUID(string: SERVICE1_UUID), CBUUID(string: SERVICE2_UUID)] centralManager.scanForPeripherals(withServices: services, options: nil) Objective C: NSArray *services = @[[CBUUID UUIDWithString:SERVICE1_UUID], [CBUUID UUIDWithString:SERVICE2_UUID]]; [centralManager scanFo...

core-bluetooth • Scan & connect with BLE peripherals (Bluetooth Smart)

Paragraphs and sections

#lang scribble/manual @section{Introduction} First paragraph. Some text, some text, some text, some text, some text, some text. @section{More stuff} @subsection{This is a subsection} Second paragraph. More text, more text, more text, more text, more text, more text.

racket • Scribble

search by Entity property and search by Entity property in

WarehosueEntity findWarehouseById(@Param("id") Long id); List<WarehouseEntity> findWarehouseByIdIn(@Param("idList") List<Long> warehouseIdList);

spring-data-jpa • Getting started with spring-data-jpa

Get and Set custom http headers in php

Sending The Request Header $uri = 'http://localhost/http.php'; $ch = curl_init($uri); curl_setopt_array($ch, array( CURLOPT_HTTPHEADER => array('X-User: admin', 'X-Authorization: 123456'), CURLOPT_RETURNTRANSFER =>true, CURLOPT_VERBOSE => 1 )); $out = curl_exec($ch...

PHP • Using cURL in PHP

Defining getters and setters in ES6 class

class Person { constructor(firstname, lastname) { this._firstname = firstname; this._lastname = lastname; } get firstname() { return this._firstname; } set firstname(name) { this._firstname = name; } get lastname() { return this._lastname; } ...

JavaScript • Setters and Getters

[Intermediate] Override Pagination style and setup Pagination per class

Override Pagination Style: Every available pagination style can be overridden by creating a new class that inherits from one of the available styles and then alters its parameters: class MyPagination(PageNumberPagination): page_size = 20 page_size_query_param = 'page_size' max_page...

django-rest-framework • Pagination

Installation and Setup (Getting Started)

Getting started with xUnit.net, on Platform: .NET Core / ASP.NET Core Desktop CLR Universal Windows Apps

xunit • Getting started with xunit

Installation and Setup

The installation is quite simple as there are seperate installers for MacOS and Windows machines available here. Currently two versions are for download: one beta and one stable. Setup will start after you downloaded the program and you´ll need to login with your GitHub credentials. That is really ...

github • GitHub Desktop

Jinja2 installation and setup

Install the dependencies: pip install jinja2 Install a framework: pip install flask Create the following structure ├── run.py └── templates Put a file template.html in the templates directory. The file can contain a jinja 2 variable named my_string. <!DOCTYPE html> <html lang=&qu...

jinja2 • Getting started with jinja2

Installing CakePHP 3.4 on CentOS 7 with PHP 7 and SELinux enabled

This is what I did to install CakePHP on a fresh installed minimal CentOS 7 Installed a CentOS-7-x86_64-Minimal-1611.iso in VirtualBox, two network interfaces: first NAT, second Host-Only set ONBOOT=yes in /etc/sysconfig/network-scripts/ifcfg-enp0s3 reboot yum update yum install net-tools (to...

cakephp-3.0 • Getting started with cakephp-3.0

Systemd service management

Listing services systemctl To list running services systemctl --failed To list failed services Managing Targets (Similar to Runlevels in SysV) systemctl get-default To find the default target for your system systemctl set-default <target-name> To set the default target for your syst...

GNU/Linux • Services

How to get and set CSS variable property values.

To get a value use the .getPropertyValue() method element.style.getPropertyValue("--var") To set a value use the .setProperty() method. element.style.setProperty("--var", "NEW_VALUE")

JavaScript • Using javascript to get/set CSS custom variables

Add Service Worker to our app

First in case you are consulting mobile.angular.io the flag --mobile doesn't work anymore. So to start , we can create a normal project with angular cli. ng new serviceWorking-example cd serviceWorking-example Now the important thing, to said to angular cli that we want to use service worker w...

Angular 2 • Service Worker

Installation and Setup from master with Angular CLI

This example will be how to install from master and will be using @angular/cli as well. Make a new project with @angular/cli: ng new my-master-app If you haven't installed @angular/cli, use this command: npm install -g @angular/cli Install from master: npm install --save @angular/a...

angular-material2 • Getting started with angular-material2