Page 52-node.js Programming Tutorials: Learn node.js Online-php.cn

Article Tags

Home

Technical Articles

Backend Development

What language is used to develop nodejs?

Node.js is developed based on the JavaScript programming language. JavaScript is an object-oriented dynamic language. Many people think that JavaScript is only a scripting language in front-end development work because it is the core language in DOM operations and Ajax technology. But in fact, JavaScript can also be used as a back-end development language. use. With the emergence of large-scale web applications and the popularity of Node.js, JavaScript

May 13, 2023 pm 09:55 PM

nodejs packaging and deployment

As the complexity of web applications increases, Node.js becomes the choice of more developers to reduce development time and costs, whether building large or small to medium-sized applications. Node.js is an open source, cross-language runtime environment for server-side applications written in JavaScript. It is designed to provide efficient I/O operations, extremely low overhead, and high scalability. In this article, we will look at how to package and deploy our application using Node.js. 1. What is packaging and deployment in Node.j

May 13, 2023 pm 09:47 PM

nodejs delete folder module

In Node.js, deleting a folder is a very common operation, but sometimes the folder deletion fails. This may be because the folder contains certain files or subfolders, causing an error during the deletion process. Therefore, we need to use a specialized module to delete the folder and all its contents. Node.js provides a built-in module fs, which can be used to operate the file system. However, the fs module does not provide a direct way to delete a folder and all its contents. Therefore, we need to use a third party

May 13, 2023 pm 08:55 PM

nodejs rpc remote procedure call

Node.js is a popular JavaScript runtime environment that makes it easy to develop high-performance applications. One of the main advantages of Node.js is its support for an asynchronous programming model that can easily handle high concurrent requests. At the same time, Node.js also provides many modules and libraries that can be used to build various types of applications. Among them, RPC (Remote Procedure Call) is a basic network protocol that allows one program to execute a program in another program.

May 13, 2023 pm 08:45 PM

What does nodejs do?

As web applications continue to develop, Node.js has become a commonly used programming language. Especially in web server and backend development, Node.js has become a very popular choice. This article will delve into the background, features, and why Node.js is so useful in web application development. 1. Background of Node.js Node.js was originally created by Ryan Dahl in 2009. It is a V8 JavaScri based on the Google Chrome browser.

May 13, 2023 pm 08:42 PM

ssh install nodejs

SSH installation Node.jsNode.js is a JavaScript running environment based on the Chrome V8 engine, which allows JavaScript to be run, developed and debugged on the server side without the browser. In this article, we will explain how to install Node.js on an SSH terminal. Step 1: Log in to the SSH terminal First, you need to log in to your server using an SSH terminal. You can use PuTTY (Windows), Terminal

May 13, 2023 pm 08:07 PM

nodejs close server function

With the continuous development and application of Node.js technology, the applications of building web servers are becoming more and more widespread. During the development process, we often encounter a requirement: shut down the server. So how do you shut down the server accurately and gracefully in a Node.js application? This article will detail how to use Node.js to build an application that can shut down the server gracefully. 1. Starting and shutting down the Node.js server. In Node.js, starting the server is very simple. You only need to use the built-in http module to complete. For example: `

May 13, 2023 pm 08:07 PM

How to modify the port of nodejs

Node.js is a JavaScript running environment based on the Chrome V8 engine. It is a server-side framework with a non-blocking I/O model. In Node.js, we can create an HTTP server by listening to the specified port. Commonly used port numbers include 80, 443, 3000, etc. But sometimes we need to change the port number of Node.js to meet specific needs. This article will introduce how to modify the Node.js port number. 1. Create using Node.js using command line parameters

May 13, 2023 pm 07:55 PM

nodejs implements ddos

Note: This article is for technical research discussion only and does not encourage or support the use of DDoS attacks for illegal activities. DDoS (Distributed Denial of Service) attack is an attack method that uses a large amount of request traffic or connections to enter the target network or server, making the network or server unable to process its normal requests. In recent years, with the continuous development of cloud computing, big data, artificial intelligence and other technologies, more and more enterprises and organizations have adopted cloud, big data and other technologies to optimize business processes and improve operational efficiency. However, this also gives

May 13, 2023 pm 07:08 PM

nodejs is still garbled

Node.js is a very popular server-side JavaScript runtime environment. It has the advantages of being lightweight, efficient, and easy to expand. It is widely used in web applications, command line tools, Internet of Things and other fields. However, in some cases, It still encounters some problems, such as garbled characters. In this article, we will explore the causes and solutions to Node.js garbled issues. 1. Reasons for the garbled code problem 1. Inconsistent character encoding In Node.js, JavaScript strings are used by default

May 13, 2023 pm 07:05 PM

Install nodejs8 from source code

As a developer, Node.js is undoubtedly one of the technologies you need to master. It is a JavaScript-based runtime environment that allows you to run JavaScript code on the server side. As we all know, Node.js comes with a npm package management tool, but when you need to install a specific version of Node.js or customize the source code, manual compilation and installation become a necessary process. In this article, we will teach you how to install Node.js from source

May 13, 2023 pm 07:00 PM

Nodejs gets image rotation angle

With the popularity of mobile devices and cameras, we often need to process pictures through programs. Among them, image rotation is a very common requirement. In this article, we will introduce how to get the rotation angle of an image using Node.js. Preparations Before starting, you need to ensure that the Node.js environment has been installed and configured. In addition, we also need to install a Node.js module called "exif-parser", which can be used to read the Exif information of the image. Install "exif-par

May 13, 2023 pm 06:55 PM

Nodejs simulates request headers

In web development, request headers are a crucial part. Through request headers, various information can be transferred between the browser and the server, including user identity authentication information, browser configuration information, language preferences, etc. Therefore, it is necessary to master how to simulate request headers. This article will introduce several methods of using Node.js to simulate request headers. 1. Using the Http module Node.js has a built-in Http module, which we can use to create http requests. First, we need to create an http request object and set the request header information

May 13, 2023 pm 06:53 PM

Nodejs does not require a login verification code

With the development of the Internet, verification codes have become an important tool to ensure website security. Many websites require users to enter verification codes when performing sensitive operations, registration, login, etc. to prevent malicious programs and robot attacks and ensure the security and authenticity of the website. However, in some scenarios, in order to improve user experience and operational convenience, it is necessary to provide some verification code services that do not require login. At this time, Node.js, which JavaScript depends on, can exert its excellent features. Asynchronous architecture and Java for Node.js

May 13, 2023 pm 06:17 PM