Program - Page 51

Learn basic programming with C, C++, Python, JavaScript, PHP, CSS, HTML5 programming languages. You can also find tutorials on databases, SQL Server here.

25 May 2019

What is Node.js?

NodeJS is a Server side platform built on Javascript Engine (V8 Engine). Node.js was developed by Ryan Dahl in 2009 and the final version is v0.10.36.

25 May 2019

Instructions for installing Node.js

If you want to set up node.js environment on your personal computer, you must have 2 software on your computer.

25 May 2019

Module in Node.js

Node.js uses the Module architecture to simplify the creation of complex applications. The module is like libraries in C, C #, Java ... Each module contains a set of functional

25 May 2019

Hello World program in Node.js

Before creating the actual Hello world application in Node.js, see the main parts of the Node.js program. A Node.js program includes the following important sections.

25 May 2019

REPL Terminal in Node.js

REPL is an acronym for Read Eval Print Loop (understandably: Reading - Evaluating - Printing - Repeating) and it represents the computer environment like the console screen in the

25 May 2019

NPM in Node.js

Provides utilities to install Node.js packages, version management and dependency management of packages in Node.js.

25 May 2019

Callbacks concept in Node.js

Callback has the same asynchronous property for a function. A callback function is called when completing a specific task. All Node APIs are written in the way of callback

25 May 2019

Event Loop in Node.js

Node.js is a single thread application, but it supports concurrent processing through event definitions and callbacks. As all Node.js APIs are asynchronous and single threaded, it

25 May 2019

Event Emitter in Node.js

Many objects in Node.js generate events, for example net.Server generates an event every time a peer connection to it, or fs.readStream generates an event when a file is opened.

25 May 2019

Concept of Buffer in Node.js

Net Javascript is Unicode encoded conveniently but not really good with binary data. When working with TCP streams or file systems, it is necessary to handle octal data streams.

25 May 2019

Stream in Node.js

Streams are objects that allow you to read data from one source and record data to a destination. In Node.js, there are 4 types of Streams.

25 May 2019

Read the File record in Node.js

In the previous chapters, you found that you used a lot of require (fs) syntax. So what is the syntax to do? This is the syntax to declare fs Module to deploy File I / O

25 May 2019

Global objects in Node.js

The Global Concept (Global) means everything has access to it. In Node.js, too, global objects are available for all modules. We do not need to declare or import them by the

25 May 2019

Utility Module in Node.js

The Node.js Library Module provides many Utility Modules that help you a lot while developing applications on Node.js. The following table lists and describes these Utility

25 May 2019

Web Module in Node.js

Web Server is a software application that can handle HTTP requests sent by HTTP Client (for example, a web browser) and return a web page in response to the Client. Web Server

25 May 2019

Express Framework in Node.js

Express is a small framework and utility for building web applications, providing a huge amount of powerful features for developing web and mobile applications. It is easy to

25 May 2019

RESTful API in Node.js

REST stands for Representational State Tranfer. REST is a web standard based on basic architectures using HTTP protocol. It processes resources, where each component is a

25 May 2019

Request object in Node.js

The req object represents the HTTP Request and has properties for the request query string, parameters, body, HTTP Header ...

25 May 2019

Response object in Node.js

The object res represents the HTTP Response that the Express application sends when receiving an HTTP Request.

25 May 2019

Load operator ++ and - in C ++

The incremental operators (++) and the reduced operator (-) are the two important unary operators available in C ++.

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