Page 30-node.js-php.cn

Article Tags

All

Home

Technical articles

nodejs cannot be uninstalled

In the process of using Node.js, you sometimes encounter some problems, such as being unable to install or uninstall Node.js. Among them, the problem of uninstalling Node.js is relatively common. Sometimes even if we take some uninstallation methods, we still cannot completely uninstall Node.js. This article mainly discusses the problem of incomplete uninstallation of Node.js and its solutions. First of all, why does the uninstallation occur incompletely? This is because Node.js will create some files in different locations on the system when it is installed.

May 25, 2023 pm 02:44 PM

Nodejs settings prohibit cross-domain

As web applications grow and become more complex, cross-domain requests become more frequent. Simply put, cross-domain request means sending a request from one page or domain name to another domain name. Cross-domain requests are not a good thing when it comes to security, as they can be used to cause security issues. In this article, we will explore how to set up a cross-domain ban with Node.js. What is cross-domain cross-domain request refers to a page from one domain name requesting resources from another domain name. For example, if you try to load ht on the page http://test1.com

May 25, 2023 pm 02:43 PM

How to exit nodejs console

Node.js is a very powerful JavaScript running environment that can run JavaScript code on the server side and can also be debugged and tested in local development. In the Node.js console, there are many commands that can perform different operations, but sometimes we may need to exit the console. This article will introduce several common exit methods. 1. Use Ctrl + C In the Node.js console, the easiest way to exit is to use the Ctrl + C command. When you press these two keys

May 25, 2023 pm 02:40 PM

nodejs query whether a file exists

Node.js is a JavaScript runtime environment widely used in back-end development. When implementing file operations, checking whether the file exists is a necessary task. Node.js provides a rich set of file IO modules, making file operations simple and easy to use. In this article, we will introduce how to use Node.js to query whether a file exists. 1. fs module The fs module of Node.js is a file system module, which is used to handle operations such as reading, writing, deleting, and modifying files. This module provides the following methods for checking

May 25, 2023 pm 02:39 PM

How to improve nodejs module

Node.js is a popular technology for building efficient servers and applications. It leverages the power and flexibility of the JavaScript language and combines it with various modern web technologies to become an important part of modern web development. A core part of Node.js is the modular system, which allows developers to break code into small, reusable components that can be conveniently used within Node.js applications. This article will introduce how to improve the performance and maintainability of Node.js modules so that your Node.js applications

May 25, 2023 pm 02:38 PM

nodejs 4 5 difference

Node.js is a popular JavaScript runtime environment that makes it easy to build high-performance web applications and backend services. The stable version of Node.js has been updated all the time, and it has now reached version ten. This article will focus on the differences between Node.js 4 and Node.js 5 to help readers understand the changes and upgrades between them. 1. Node.js 4 and Node.js 5 release date Node.js 4 in 2015

May 25, 2023 pm 02:32 PM

nodejs upgrade failed

During development using Node.js, we may need to upgrade the Node.js version for various reasons. However, when you try to upgrade your Node.js version, you may encounter upgrade failures. At this time, we need some debugging skills and solutions to help us solve this problem. This article will introduce the solution to Node.js upgrade failure on Windows systems and how to use Node Version Manager (NVM) to avoid this problem.

May 25, 2023 pm 02:23 PM

nodejs realizes multiplayer real-time battle

With the rapid development of the Internet, games have become a major way for people to entertain themselves. Multiplayer online games have been widely developed and promoted in recent years. In this process, real-time battles have become one of the core gameplays of many games. This article will introduce how to use Node.js to implement multiplayer real-time battle function. 1. Introduction to Node.js Node.js is a server-side JavaScript runtime environment developed by Ryan Dahl. It is based on Google's V8 engine and uses an event-driven, non-blocking I/O model.

May 25, 2023 pm 01:46 PM

Nodejs implements cross-domain

Cross-domain refers to a document or script in one domain trying to request resources in another domain. In this case, cross-domain problems will occur because the browser has a same-origin policy, which attempts to maximize the Ensure the security of web applications to the maximum extent. That is, client scripts in different domains cannot read or write each other's document content without explicit authorization. Node.js is a popular server-side JavaScript runtime environment that makes it easy to create web applications. In Node.js, we can use many ways to achieve cross-

May 25, 2023 pm 01:38 PM

nodejs stops execution

With the widespread application of Node.js, more and more people are beginning to realize its power and flexibility. However, sometimes you may need to stop an executing Node.js process. This article will introduce how to stop the execution of Node.js on different platforms. ## Windows There are two ways to stop the Node.js process on Windows. The first is through Task Manager. Press the `Ctrl + Shift + Esc` key combination to open the Task Manager. Find "node.ex" in the "Processes" tab

May 25, 2023 pm 01:33 PM

nodejs cannot render css

When developing web applications, we usually use HTML, CSS and JavaScript to build pages. For Node.js developers, it is common to encounter CSS failure to render when using Node.js to render pages. In Node.js, we can use some template engines such as EJS, Handlebars or Pug to render HTML pages. Generally speaking, we will reference CSS files in HTML files, but when we use Node.js to render the page on the server side, sometimes

May 25, 2023 pm 01:29 PM

Nodejs implements delay queue

Node.js implements delay queue. Delay queue refers to a queue that executes a task after a certain period of time. In many scenarios, we need to perform some tasks at a certain point in the future, such as the implementation of scheduled tasks. In Node.js, we can use delay queues to achieve such needs. This article will introduce how to use Node.js to implement delay queues. 1. Implementation methods There are two commonly used ways to implement delay queues in Node.js: - using the setTimeout function - using setInt

May 25, 2023 pm 01:28 PM

Nodejs concurrency

Node.js is currently one of the most popular server-side JavaScript running environments. It uses an asynchronous, non-blocking I/O programming model, so it has very good performance in high-concurrency scenarios. However, for a Node.js application, how much concurrency is required to achieve optimal performance? This article will explore this issue. 1. The definition and importance of concurrency In the computer field, concurrency refers to the number of concurrent requests processed by the system in unit time. Generally speaking, the higher the concurrency of the system, it means that the system needs

May 25, 2023 pm 01:26 PM

How to start nodejs service

As web applications become increasingly complex, the need for backend services becomes increasingly urgent. In the past, most backend services were written in traditional languages such as Java or C#, but with the popularity of Node.js, more and more services are now being developed on Node.js. If you are developing a web application using Node.js, then you need to know how to start the Node.js service. In this article, we will explore how to start a Node.js service and introduce some possible problems and solutions. Start Node

May 25, 2023 pm 01:05 PM