{"id":107956,"date":"2023-04-19T12:48:21","date_gmt":"2023-04-19T10:48:21","guid":{"rendered":"https:\/\/prohoster.info\/?p=107956"},"modified":"2023-04-19T14:43:38","modified_gmt":"2023-04-19T12:43:38","slug":"dostupna-servernaya-javascript-platforma-node-js-20-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/dostupna-servernaya-javascript-platforma-node-js-20-0","title":{"rendered":"The server-side JavaScript platform Node.js 20.0 is now available.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
The release of Node.js 20.0 has occurred, a platform for executing network applications in JavaScript. Node.js 20.0 is categorized under long-term support branches, but this status will be granted only in October, after stabilization is completed. Support for Node.js 20.x will continue until April 30, 2026. Maintenance for the previous LTS branch, Node.js 18.x, will last until April 2025, while the older LTS branch 16.x will be supported until September 2023. Support for the LTS branch 14.x will end on April 30, and for the interim branch Node.js 19.x \u2014 on June 1. <\/p>\n
Key Improvements: <\/p>\n
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The V8 engine has been upgraded to version 11.3, used in Chromium 113. Compared to the Node.js 19 branch, which utilized the Chromium 107 engine, the changes include features like String.prototype.isWellFormed and toWellFormed, methods in Array.prototype and TypedArray.prototype for working with a copy when modifying Array and TypedArray objects, the 'v' flag in RegExp, support for resizing ArrayBuffer and enlarging SharedArrayBuffer, and tail-call recursion in WebAssembly.\n
To check access, it is recommended to use the method process.permission.has(), for example, 'process.permission.has('fs.write','\/tmp\/test'). <\/p>\n
Handlers for external ECMAScript modules (ESM) loaded via the '--experimental-loader' option are now executed in a separate thread, isolated from the main thread, which eliminates code overlap between applications and loaded ESM modules. Similar to browsers, the import.meta.resolve() method is now executed synchronously when called from the application. In one of the upcoming Node.js branches, support for ESM loading is planned to be transitioned to stable capabilities.\n
The module node:test (test_runner), designed for creating and running tests in JavaScript that return results in the TAP (Test Anything Protocol) format, has been moved to stable.\n
A dedicated team of developers has been formed to focus on performance optimization, which, in preparation for the new branch, worked on accelerating various runtime components, including URL parsing, fetch(), and EventTarget. For instance, overhead for initializing EventTarget has been reduced by half, the performance of the URL.canParse() method has been significantly improved, and the efficiency of timers has been enhanced. Additionally, a high-performance URL parser \u2014 Ada 2.0, written in C++, has been included.\n
The development of the experimental capability for deploying applications as a single executable file (SEA, Single Executable Applications) has continued. Creating the executable file now requires a blob substitution generated from a configuration file in JSON format (instead of substituting a JavaScript file).\n
Compatibility of the Web Crypto API with implementations from other projects has been improved.\n
Official support for Windows on ARM64 systems has been added.\n
Support for WASI (WebAssembly System Interface) extensions for creating isolated WebAssembly applications has continued. The need to specify a special command line flag to enable WASI support has been removed. <\/ul>\n