node - Node.js is an open-source, cross-platform, asynchronous event-driven JavaScript runtime environment based on the V8 engine

node

Node.js is an open-source, cross-platform, asynchronous event-driven JavaScript runtime environment based on the V8 engine

Introduction

Node.js is an open-source, cross-platform, asynchronous event-driven JavaScript runtime environment based on the V8 engine. It was created by Ryan Dahl in 2009 with the aim of enabling high-performance network application development.

1. High Performance: Node.js uses an event-driven and non-blocking I/O model, allowing it to handle a large number of concurrent requests. It uses a single-threaded model, avoiding the complexities and overhead of multi-threaded programming.
2. Application Scope: It is suitable for developing real-time communication, data streaming, microservices architectures, and more.
3. Rich Ecosystem: Node.js has a vast ecosystem and a rich library of packages available through tools like npm (Node Package Manager). These libraries can be used to enhance the overall functionality of applications.

Get Started for First-Time Users

1. The demo on this page provides an example of using JavaScript to output hello world.
2. x-cmd provides a 1-Minute Node.js Tutorial that demonstrates basic functions such as I/O, file operations, networking, and processes using Node.js.

Technical Features

1. Event-driven and Non-blocking I/O are the most significant features of Node.js.
   1. By using an event loop mechanism, Node.js can handle multiple concurrent operations within a single thread, eliminating blocking and improving the performance of high-concurrency applications.
   2. Node.js uses the well-known libuv as the underlying implementation for asynchronous I/O.
   3. Asynchronous callback-style programming can be challenging, but JavaScript has introduced features like Promises and Async/Await to improve the developer experience.
2. Portable Runtime:
   1. Node.js is a lightweight runtime environment that focuses on executing JavaScript code and provides basic APIs. It is easy to install as it has minimal dependencies apart from the system's standard C library.
3. Fast Startup and Responsiveness:
   1. Node.js uses the V8 engine, the same engine used in web browsers, for executing JavaScript code. This inheritance gives it an advantage in terms of startup speed and responsiveness.
   2. In earlier versions of Node.js, its startup time lagged behind languages like Python, especially when loading a significant number of third-party libraries. However, since version 10, Node.js has made significant improvements in startup time and loading.
4. Large Ecosystem and Third-Party Libraries:
   1. Due to its open nature, efforts from the npm community, and a vibrant ecosystem, Node.js now has a vast library of third-party packages.
   2. Many Node.js libraries are small in size, which can lead to fragmentation and longer installation times. To address this, various third-party tools have been introduced to optimize package installation, such as yarn and pnpm. More recently, bun introduced a compatible package installation tool for Node.js, promising up to 25 times faster installation. It was recently released, and we are eagerly awaiting its performance.

Competitors

1. Deno is a runtime created by the original author of Node.js, developed in Rust. It aims to rethink and improve certain design decisions made in Node.js. x-cmd also includes Deno, and interested readers can refer to x-cmd pkg deno.
2. Bun was created by Jarred Sumner in 2021 using Zig. Unlike Node and Deno, which are based on the V8 engine from the Chrome project, Bun uses the JavaScriptCore engine. x-cmd also includes Bun, and interested readers can refer to x-cmd pkg bun.

Further Reading

• For enhancements and extensions of Node.js in command-line usage by x-cmd, you can check out: module for node.

Global Installation：

1. Automatically download the installation package and expand it locally.
2. Automatically create symbolic links for executable files in x-cmd's bin directory.
3. All currently open shells can directly use the command name.

x pkg use node

https://nodejs.org
License	MIT
Language	"C++"
Version	v24.22.1 stable

Package Installation Support Provided for
x64
	Linux
	Darwin
	Windows
ARM64
	Linux
	Darwin

Package Binary Source from

Official Source
• https://nodejs.org/dist

Repackaged from Third-party Source
• https://registry.npmmirror.com/-/binary/node
• https://github.com/x-cmd-build/node/releases

Related Link

Module

`x pkg` => usage