Tutorial by Examples: u

- name: Installing Oracle Java and support libs apt: pkg={{ item }} with_items: - python-software-properties - oracle-java8-installer - oracle-java8-set-default - libjna-java

Place a file like the following in your top level directory. It defines which components to render for which paths import React from 'react'; import { Route, IndexRoute } from 'react-router'; import New from './containers/new-post'; import Show from './containers/show'; import Index from './c...

# A line used mostly as the first one, imports App class # that is used to get a window and launch the application from kivy.app import App # Casual Kivy widgets that reside in kivy.uix from kivy.uix.label import Label from kivy.uix.button import Button from kivy.uix.boxlayout import BoxLayo...

Twitter Bootstrap supports icons called glyphicons and they can be used with all tags of HTML. All icons require a base class and individual icon class. Keep in mind that icon classes cannot be directly combined with other components, so always use inner <span></span> tag. If your HTM...

django-filter is generic system for filtering Django QuerySets based on user selections. The documentation uses it in a function-based view as a product model: from django.db import models class Product(models.Model): name = models.CharField(max_length=255) price = models.DecimalField(...

The following procedure is a generic one which will be used to log all errors in an application to a common error log table. CREATE OR REPLACE PROCEDURE log_errors ( p_calling_program IN VARCHAR2, p_error_code IN INTEGER, p_error_description IN VARCHAR2 ) IS PRAGMA AUTONOMOUS_TRANSAC...

Use the analytical function row_number(): with t as ( select col1 , col2 , row_number() over (order by col1, col2) rn from table ) select col1 , col2 from t where rn between N and M; -- N and M are both inclusive Oracle 12c handles this more easily with OFFSET and FETCH.

TestNG allows defining groups which can include other groups. MetaGroups logically combine one or more group(s) and control the execution of the @Testmethods belonging to those groups. In below example there are various @Test methods belonging to different group(s). Few are specific to particular s...

Create a new browser bookmark, for example, in Chrome click the star icon at the right in the address bar, make sure the Folder is Bookmarks Bar, and then click the Edit... button: In the edit box that opens paste the following code as the URL: javascript:(function(){var root=(window.location.pa...

To add ws to your file's simply use: var ws = require('ws');

To open a new WebSocket, simply add something like: var WebSocket = require("ws"); var ws = new WebSocket("ws://host:8080/OptionalPathName); // Continue on with your code... Or to open a server, use: var WebSocketServer = require("ws").Server; var ws = new WebSocketS...

Assuming that you have node and npm installed and available, create a project folder with a valid package.json. Install the necessary dependencies: npm install --save-dev metalsmith metalsmith-in-place handlebars Create a file called build.js at the root of your project folder, containing the fo...

app.use() and middleware can be used for "before" and a combination of the close and finish events can be used for "after". app.use(function (req, res, next) { function afterResponse() { res.removeListener('finish', afterResponse); res.removeListener('clos...

When required you can tell Docker to execute additional commands on an already running container using the exec command. You need the container's ID which you can get with docker ps. docker exec 294fbc4c24b3 echo "Hello World" You can attach an interactive shell if you use the -it option...

<a href="<?php echo esc_url( home_url( '/' ) ); ?>">Home</a> <img src="<?php echo esc_url( $user_picture_url ); ?>" />

<input type="text" value="<?php echo esc_attr($_POST['username']); ?>" />

String base64="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; void setup() { Serial.begin(9600); // Turn the serial protocol ON Serial.println("Start Typing"); } void loop() { if (Serial.available() > 0) { // Check if data has bee...

One of the most important things to learn when you are making a WordPress theme is the WordPress Template hierarchy for themes. The template hierarchy defines what template file that will be loaded for each request and in what order. If the first template does not exist in the hierarchy WordPress wi...

1. Include the font in your Xcode project. 2. Make sure that they are included in the Target Membership column Click on the font from the navigator, and check if the font included. 3. Check if the font included as Resource in your bundle click on your Xcode project file, select "Build P...

After you obtained BluetoothDevice, you can communicate with it. This kind of communication performed by using socket input\output streams: Those are the basic steps for Bluetooth communication establishment: 1) Initialize socket: private BluetoothSocket _socket; //... public InitializeSock...