Tutorial by Examples: al

Of all the operators, relational operators are the most complex ones, that is why we left them to the end. Relational operators are also known as Comparison operators, they are used to compare things. Comparison result is boolean false or true. Interestingly though, if you check it in V...

Detailed instructions on getting twitter set up or installed.

set var1=123456789 set var2=abcdef call :specialvars echo %var1%, %var2% rem More code... :specialvars setlocal set var1=987654321 set var2=fedcba endlocal goto :eof When inside the section setlocal , endlocal section, variables are seperate from the caller's variables, hence why %var...

set importantvar=importantstuff call :stuff 123 var1 rem More code... :stuff <arg1> <arg2> setlocal set importantvar=%~1 echo Writing some stuff into %~2! endlocal set %~2=some stuff setlocal set importantvar=junk endlocal goto :eof This utilizes the basic function, setl...

@Component public class RestExceptionResolver extends ExceptionHandlerExceptionResolver { @Autowired //If you have multiple handlers make this a list of handlers private RestExceptionHandler restExceptionHandler; /** * This resolver needs to be injected because it is the...

GraphQL.js GraphQL.js is a JavaScript reference implementation for GraphQL. You can install it via npm: Initialize npm in your project if you have not done so already: npm init Install GraphQL.js from npm: npm install --save graphql Example Server var { graphql, buildSchema } = require('gra...

For this demonstration we will use service broker construction created in another part of this documentation. Mentioned part is called 3. Create basic service broker construction on database (single database communication). First we need to create a procedure that is able to read and process data f...

Detailed instructions on getting file set up or installed.

npm install --global yarn If you didn't have npm installed before, check there website documentation for more details. https://yarnpkg.com/en/docs/install

Lets first understand the problem, consider this figure- We want to calculate ϴ, where we know A, B & O. Now, if we want to get ϴ, we need to find out α and β first. For any straight line, we know- y = m * x + c Let- A = (ax, ay), B = (bx, by), and O = (ox, oy). So for the line OA- oy =...

The try...catch...finally statement combines exception handling with clean-up code. The finally block contains code that will be executed in all circumstances. This makes them suitable for resource management, and other kinds of cleanup. Try-finally Here is an example of the simpler (try...finally...

The passport-local module is used to implement a local authentication. This module lets you authenticate using a username and password in your Node.js applications. Registering the user : const passport = require('passport'); const LocalStrategy = require('passport-local').Strategy; // A ...

GDAL is available in the default repositories of most popular Linux distributions and can be installed in the same way that packages in a Linux distribution are usually installed. apt-get install libgdal-dev CPLUS_INCLUDE_PATH and C_INCLUDE_PATH are necessary in order to include these correspondin...

Entity toBeTeleported; //The entity you want to teleport Location teleportTo = new Location(world,x,y,z,yaw,pitch); //The location to teleport to boolean success = toBeTeleported.teleport(teleportTo); if(success) { //Teleport was successful }else { //Teleport wasn't success...

ReactiveCocoa supports macOS 10.9+, iOS 8.0+, watchOS 2.0+, and tvOS 9.0+. Carthage If you use Carthage to manage your dependencies, simply add ReactiveCocoa to your Cartfile: github "ReactiveCocoa/ReactiveCocoa" ~> 5.0 If you use Carthage to build your dependencies, make sure you...

public async Task SetProductInactiveAsync(int productId) { using (IDbConnection con = new SqlConnection("myConnectionString")) { await con.ExecuteAsync("SetProductInactive", new { id = productId }, commandType: CommandType.StoredProcedure); ...

NOTES: We are going to install Magento 2 on fresh Ubuntu Server 16.04 LTS with PHP 7.0, MySQL 5.6 and Apache 2.4. 1. Setup Requirements Apache 2.2 or 2.4 with mod_rewrite module (or) Nginx >= 1.8. PHP 5.5 or later version. PHP 7.0 also supported. Required PHP-Modules – PDO/MySQL, mbstring, ...

Generators are fast coded and in many cases a slim alternative to heavy iterator-implementations. With the fast implementation comes a little lack of control when a generator should stop generating or if it should generate something else. However this can be achieved with the usage of the send() fu...

To match special characters Double Backslash should be used \. becomes \\. Characters you'll have to escape include (){}[]/\+*$>.|^? The below example get three kinds of opening brackets let specials = "(){}[]" let pattern = "(\\(|\\{|\\[)" do { let regEx = try N...

Regular expressions can be used to validate inputs by counting the number of matches. var validDate = false let numbers = "35/12/2016" let usPattern = "^(0[1-9]|1[012])[-/.](0[1-9]|[12][0-9]|3[01])[-/.](19|20)\\d\\d$" let ukPattern = "^(0[1-9]|[12][0-9]|3[01])[-/](0[1...