Tutorial by Examples: io

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 ...

The passport-facebook module is used to implement a Facebook authentication. In this example, if the user does not exist on sign-in, he is created. Implementing strategy : const passport = require('passport'); const FacebookStrategy = require('passport-facebook').Strategy; // Strategy is name...

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...

Official roadmap @ Github VersionAnnouncementsRelease DateRC1*1.0.0-rc12015-11-01RC2*1.0.0-rc22016-05-161.0.01.0.02016-06-271.0.11.0.12016-09-131.0.11.0.12016-09-131.11.1.0Q4 2016 / Q1 20171.21.2.0Q1 2017 / Q2 2017 * References to yearly quarters (Q1, Q2, Q3, Q4) are calendar-based

The pattern parameter_pack ... is expanded into a list of comma-separated substitutions of parameter_pack with each one of its parameters template<class T> // Base of recursion void variadic_printer(T last_argument) { std::cout << last_argument; } template<class T, class .....

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...

Java's checked exception mechanism requires the programmer to declare that certain methods could throw specifed checked exceptions. This is done using the throws clause. For example: public class OddNumberException extends Exception { // a checked exception } public void checkEven(int number) ...

MediaTypeFormatter is an abstract class from which JsonMediaTypeFormatter and XmlMediaTypeFormatter classes inherit from. Here, JsonMediaTypeFormatter class handles JSON objects and XmlMediaTypeFormatter class handles XML objects. Return only JSON irrespective of the Accept Header value: To return...

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...

What is Dagger 2 ? The website describes itself as: Dagger is a fully static, compile-time dependency injection framework The library makes it easy to model dependency graphs as well as to reuse objects. Since reflection is only used at compile time as part of the annotation processing Dagger...

It is often useful to build matrices out of smaller matrices. Horizontal Concatenation Matrices (and vectors, which are treated as column vectors) can be horizontally concatenated using the hcat function. julia> hcat([1 2; 3 4], [5 6 7; 8 9 10], [11, 12]) 2×6 Array{Int64,2}: 1 2 5 6 7 ...

Fast Development process Decoupling Unit test writing Fast Development process When using dependency injection node developer can faster their development proceess because after DI there is less code conflict and easy to manage all module. Decoupling Modules becomes less couple then it i...

Though it is an obsoleted part of the XSI standard, many implementations still support multiple expressions with Boolean operators and parenthesis. The (obsolete) operators are listed below with decreasing precedence. ( expression ) expression -a expression expression -o expression Using thes...

Create simple CRUD Operation Using Serverless Framework Install Serverless framework globally npm install serverless -g Create simple Lambda Service serverless create --template aws-nodejs --path myService Go to the myService Directory it should contain serverless.yml handler.js even...

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...

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...

Underscore is an open source functional programming utility library for JavaScript. Underscore provides many useful functions for working with arrays or collections of JavaScript objects, including filtering, sorting and querying. Node.js Make sure you have node and npm installed then type the fol...

Create a simple servlet: package web.example; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse...

public class BucketSort { public static void SortBucket(ref int[] input) { int minValue = input[0]; int maxValue = input[0]; int k = 0; for (int i = input.Length - 1; i >= 1; i--) { if (input[i] > maxValue) maxValue = input...

Preconditions These instructions suppose you have any type of Linux, Unix, Mac with bash or Git-bash Windows. Windows: Download and install Git-bash for Windows, then execute 'bash' from command line. Other shells than bash are fine too, just replace the activate command below with activate.csh...