Node.js, the highly effective and common JavaScript runtime, has launched its newest model—Node.js 22. On this launch, three main updates stand out: the improved functionality to require() ECMAScript modules (ESM) inside CommonJS modules, the introduction of a built-in WebSocket consumer, and the most recent updates to the V8 JavaScript engine. Let’s discover these updates and extra!
Essential Updates for Node.js 22
Enhanced require() for ECMAScript Modules
Node.js 22 bridges the hole between CommonJS and ECMAScript modules by enabling the require() operate to import ESM modules immediately. The brand new model permits for synchronous ECMAScript modules to be require()d beneath the –experimental-require-module flag, which facilitates simpler integration and utilization of various module programs.
Native WebSocket Consumer
Node.js 22 introduces a local WebSocket consumer that streamlines the implementation of real-time net functionalities. This built-in functionality eliminates the dependency on third-party libraries for WebSocket communication, making it simpler to develop purposes that require dwell knowledge updates, corresponding to chat apps or dwell notifications.
Updates to the V8 JavaScript Engine
The V8 JavaScript engine in Node.js 22 has been up to date to enhance efficiency and introduce new ECMAScript options, holding Node.js on the forefront of JavaScript execution effectivity. The up to date V8 engine now helps new options corresponding to WebAssembly Rubbish Assortment, Array.fromAsync, Set strategies, and iterator helpers, considerably enhancing efficiency and capabilities.
Different Updates
Enabled Maglev Compiler: Routinely enabled on appropriate architectures, the Maglev Compiler enhances the execution effectivity of temporary CLI packages, optimizing operations for quicker, extra responsive efficiency.Direct Execution of bundle.json Scripts: An modern experimental function in Node.js 22 is the flexibility to execute scripts immediately from the bundle.json utilizing the CLI flag node –run <script-in-package-json>. This function provides builders a streamlined approach to handle and execute scripts, enhancing workflow effectivity.Official Secure Watch Mode: The node –watch function, which reloads Node.js processes routinely upon file modifications, has reached full stability. This performance is essential for builders looking for environment friendly iterative testing and growth.Stream Efficiency Enhancement: The adjustment of the default Excessive Water Mark from 16KiB to 64KiB improves general efficiency for streaming operations, albeit on the expense of a modest improve in reminiscence utilization.Introduction of Globbing Capabilities: The glob and globSync capabilities have been added to the node:fs module, enabling builders to match file paths based mostly on particular patterns simply.Enhanced Creation of AbortSignal Situations: Enhancements within the creation course of for AbortSignal situations lead to vital efficiency boosts for APIs like fetch and numerous testing instruments.
To obtain Node.js 22.0.0 and discover these new capabilities, go to Node.js Downloads. For extra particulars on the options and the whole listing of commits, take a look at the Official GitHub.
As Node.js 22 progresses from its “Present” launch standing to long-term assist (LTS) in October, you’ve the chance to begin integrating these improvements into their tasks.