Tutorial by Examples: en

XML <House> <numRooms>4</numRooms> <Room name="living"/> <Room name="master bedroom"/> <Room name="kids' bedroom"/> <Room name="kitchen"/> </House> XPATH /House/child::Room or /...
During a review, user has the possibility to add comments to explain his point of view. There is several kind of comments Comment a file : The yellow symbol allow user to add comment on entire file Line comment : Click the line number to comment it Word selection : The last option i...
Suppose we want to have the following behaviour - We have a heading (say h3 element) and on clicking it, we want it to become an input box so that we can modify heading name. React makes this highly simple and intuitive using component states and if else statements. (Code explanation below) // I ha...
When you are getting started with ElasticSearch (ES) it might be good to have a graphical tool that helps you explore your data. A plugin called elasticsearch-head does just that. To install it, do the following: Find out in which folder ES is installed: ls -l $(which elasticsearch) cd into this...
C source file gcc -Wall -Wextra -o main main.c C++ source file g++ -Wall -Wextra -Wconversion -Woverloaded-virtual -o main main.cpp
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> ...
QML came with rich set of visual elements. Using only QML we can build complex applications with these elements. Also it's very easy to build your own element based on set of standard items like Rectangle, Button, Image etc. Moreover, we can use items like Canvas to build element with custom paint...
Denormalization and a flat database structure is neccessary to efficiently download separate calls. With the following structure, it is also possible to maintain two-way relationships. The disadvantage of this approach is, that you always need to update the data in multiple places. For an example, ...
class MyClass { private String privateField } def prvtClss = new MyClass(privateField: 'qwerty') println prvtClss.privateField will print us 'qwerty' This issue is known since version 1.1 and there is a bug report on that: http://jira.codehaus.org/browse/GROOVY-1875. It is not reso...
For the following schema: {name: 'Tom', age: 28, marks: [50, 60, 70]} Update Tom's marks to 55 where marks are 50 (Use the positional operator $): db.people.update({name: "Tom", marks: 50}, {"$set": {"marks.$": 55}}) For the following schema: {name: 'Tom', age:...
After a statement was executed, a call to sqlite3_reset() brings it back into the original state so that it can be re-executed. Typically, while the statement itself stays the same, the parameters are changed: const char *sql = "INSERT INTO MyTable(ID, Name) VALUES (?, ?)"; sqlite3_stmt...
/_build /db /deps /*.ez erl_crash.dump /node_modules /priv/static/ /config/prod.secret.exs /rel
Employee Entity @Entity public class Employee { @TableGenerator(name = "employee_gen", table = "id_gen", pkColumnName = "gen_name", valueColumnName = "gen_val", allocationSize = 1) @Id @GeneratedValue(strategy = GenerationType.TABLE, generat...
Prereqs: Selenium and required Browser Drivers are installed (Available in Nuget) NUnit has been installed in VS and added to the project using NUnit.Framework; using OpenQA.Selenium; using OpenQA.Selenium.Chrome; using OpenQA.Selenium.Firefox; using OpenQA.Selenium.IE; using System; [...
MyWebView.Navigate(new Uri("http://www.url.com"));
MyWebView.Navigate(new Uri("ms-appdata:///local/Downloads/index.html"));
It is suggested that you define groups based on purpose of the host (roles) and also geography or datacenter location (if applicable): File inventory/production [rogue-server] 192.168.1.1 [atlanta-webservers] www-atl-1.example.com www-atl-2.example.com [boston-webservers] www-bos-1.examp...
// Include Nodejs' net module. const Net = require('net'); // The port number and hostname of the server. const port = 8080; const host = 'localhost'; // Create a new TCP client. const client = new Net.Socket(); // Send a connection request to the server. client.connect({ port: port, host:...
SELECT ROWNUM NO FROM DUAL CONNECT BY LEVEL <= 10

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