How to upgrade nodejs version
Upgrade method: 1. Use the "npm cache clean -f" command to clear the npm cache; 2. Use the "npm install -g n" command to install the n module; 3. Use the "n version number" command to upgrade to the specified version, or use the "n stable" command to upgrade to the latest stable version.
The operating environment of this tutorial: CentOS 6 system, nodejs version 12.19.0, DELL G3 computer.
The development of Node.js is very active, and its latest stable version also changes frequently. From time to time, you will find that a module cannot be used on your current Nodejs version. At this time, you need to upgrade the Nodejs version. So how to upgrade?
You can use the Node Binary management module "n" to upgrade the nodejs version. Let's take a look at the upgrade steps:
1. Install the n module
Check the current node version:
node –v
Clear npm cache
npm cache clean -f
Install n module:
npm install -g n
2. Upgrade the Nodejs version
Upgrade to the specified version/latest version (this step may take some time). Before upgrading, you can execute n ls
(to view the upgradeable versions), such as:
n 6.9.1
Or you can Tell the manager to install the latest stable version
n stable
After the installation is completed, check the version of Node and check whether the upgrade is successful
node -v
Note: If the version information obtained is incorrect, you You may need to restart the machine
[Recommended learning: "nodejs tutorial"]
The above is the detailed content of How to upgrade nodejs version. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

The main differences between Node.js and Tomcat are: Runtime: Node.js is based on JavaScript runtime, while Tomcat is a Java Servlet container. I/O model: Node.js uses an asynchronous non-blocking model, while Tomcat is synchronous blocking. Concurrency handling: Node.js handles concurrency through an event loop, while Tomcat uses a thread pool. Application scenarios: Node.js is suitable for real-time, data-intensive and high-concurrency applications, and Tomcat is suitable for traditional Java web applications.

Node.js is a server-side JavaScript runtime, while Vue.js is a client-side JavaScript framework for creating interactive user interfaces. Node.js is used for server-side development, such as back-end service API development and data processing, while Vue.js is used for client-side development, such as single-page applications and responsive user interfaces.

Node.js can be used as a backend framework as it offers features such as high performance, scalability, cross-platform support, rich ecosystem, and ease of development.

Yes, Node.js is a backend development language. It is used for back-end development, including handling server-side business logic, managing database connections, and providing APIs.

There are two npm-related files in the Node.js installation directory: npm and npm.cmd. The differences are as follows: different extensions: npm is an executable file, and npm.cmd is a command window shortcut. Windows users: npm.cmd can be used from the command prompt, npm can only be run from the command line. Compatibility: npm.cmd is specific to Windows systems, npm is available cross-platform. Usage recommendations: Windows users use npm.cmd, other operating systems use npm.

The following global variables exist in Node.js: Global object: global Core module: process, console, require Runtime environment variables: __dirname, __filename, __line, __column Constants: undefined, null, NaN, Infinity, -Infinity

The main differences between Node.js and Java are design and features: Event-driven vs. thread-driven: Node.js is event-driven and Java is thread-driven. Single-threaded vs. multi-threaded: Node.js uses a single-threaded event loop, and Java uses a multi-threaded architecture. Runtime environment: Node.js runs on the V8 JavaScript engine, while Java runs on the JVM. Syntax: Node.js uses JavaScript syntax, while Java uses Java syntax. Purpose: Node.js is suitable for I/O-intensive tasks, while Java is suitable for large enterprise applications.

Node.js and Java each have their pros and cons in web development, and the choice depends on project requirements. Node.js excels in real-time applications, rapid development, and microservices architecture, while Java excels in enterprise-grade support, performance, and security.
