{"id":120214,"date":"2024-10-17T13:09:19","date_gmt":"2024-10-17T11:09:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovana-platforma-node-js-23-0-s-nachalnoj-podderzhkoj-yazyka-typescript"},"modified":"2026-02-15T22:30:50","modified_gmt":"2026-02-15T20:30:50","slug":"opublikovana-platforma-node-js-23-0-s-nachalnoj-podderzhkoj-yazyka-typescript","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/opublikovana-platforma-node-js-23-0-s-nachalnoj-podderzhkoj-yazyka-typescript","title":{"rendered":"Node.js 23.0 er udgivet med tidlig support for TypeScript","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Node.js 23.0.0 er blevet frigivet, en platform til at k\u00f8re netv\u00e6rksapplikationer skrevet i JavaScript. Node.js 23.0 tilh\u00f8rer de midlertidige grene, som vil blive vedligeholdt i 7 m\u00e5neder (indtil juni 2025). I de kommende dage afsluttes stabiliseringen af Node.js 22, som den 29. oktober vil opn\u00e5 LTS-status og vil blive underst\u00f8ttet indtil april 2027. Underst\u00f8ttelsen af de tidligere LTS-grene Node.js 20.x og 18.x vil vare indtil april 2026 og 2025 henholdsvis.       <\/p>\n<p>Hovedforbedringer:  <\/p>\n<ul>\n<li class=\"l\"> Eksperimentel underst\u00f8ttelse af TypeScript-sprog er tilf\u00f8jet, som tillader eksplicit typebestemmelse. Underst\u00f8ttelse aktiveres ved hj\u00e6lp af indstillingerne &#171;&#8212;experimental-strip-types&#187; og &#171;&#8212;experimental-transform-types&#187;. Ved den f\u00f8rste mulighed begr\u00e6nses arbejdet med TypeScript til at fjerne sprog-specifikke typebestemmelser (typekontrol udf\u00f8res ikke, koden omdannes blot til JavaScript uden typer). Den anden mulighed omdanner nogle dele af TypeScripts syntaks til JavaScript-kode, for eksempel enumereringer (enum) og navnerum (namespace).\n<li class=\"l\"> Muligheden for at bruge opkaldet &#171;require()&#187; til at indl\u00e6se JavaScript-moduler ESM (ECMAScript-moduler) synkront er aktiveret som standard. ESM-moduler anvendes i browsere og afl\u00f8ser CommonJS-moduler, som er specifikke for Node.js. For at indl\u00e6se via &#171;require()&#187; i Node.js skal ESM-modulet udf\u00f8res synkront (uden await p\u00e5 topniveau).\n<li class=\"l\"> Automatisk identifikation af ESM-moduler i filer uden udvidelse eller med udvidelsen &#171;.js&#187; er sikret. Tidligere blev s\u00e5danne filer betragtet som CommonJS-moduler, medmindre deres type blev angivet eksplicit i den samme mappe package.json fil (&#171;type&#187;: &#171;module&#187;). I den nye version fors\u00f8ges det f\u00f8rst at indl\u00e6se som et CommonJS-modul for filer, hvis type ikke er angivet i package.json, og hvis det mislykkes, s\u00e5 som et ESM-modul.\n<li class=\"l\"> Der er tilf\u00f8jet eksperimentel implementering <a href=\"https:\/\/prohoster.info\/da\/ssl-sertifikat\/rapidssl-wildcard\/\"  data-wpil-monitor-id=\"3321\">kompatibel med browsere<\/a> API Web Storage, der er beregnet til permanent (klasse localStorage) eller midlertidig (klasse sessionStorage) datalagring i n\u00f8gle\/v\u00e6rdi format. For at aktivere underst\u00f8ttelsen af Web Storage kr\u00e6ves det, at du starter med flaget &#171;&#8212;experimental-webstorage&#187; og angiver stien til filen med lagringen via flaget &#171;&#8212;localstorage-file&#187;.\n<li class=\"l\"> Eksperimentelt API SQLite til h\u00e5ndtering af databaser, der bruger SQL-foresp\u00f8rgselsprog og lagring baseret p\u00e5 SQLite-biblioteket, er tilf\u00f8jet. Ud over at gemme databasen i en fil p\u00e5 disken, kan den ogs\u00e5 placeres i hukommelsen ved at angive &#171;:memory:&#187; i stedet for filnavnet. Ovenst\u00e5ende API Web Storage er ogs\u00e5 implementeret oven p\u00e5 SQLite, hvilket har f\u00f8rt til, at SQLite er blevet en af afh\u00e6ngighederne for Node.js.\n<li class=\"l\"> Kommandolinjen &#171;node &#8212;run&#187; er erkl\u00e6ret stabil og er beregnet til at k\u00f8re scripts, der er defineret i filen package.json.\n<li class=\"l\"> Der er implementeret valgfri st\u00f8tte til caching af kompileret kode p\u00e5 disken for betydeligt at accelerere opstarten af moduler. Aktivering af caching sker gennem milj\u00f8variablen NODE_COMPILE_CACHE. Denne mulighed minder om pakken v8-compile-cache, men adskiller sig ved h\u00f8jere ydeevne og st\u00f8tte for ESM-moduler.\n<li class=\"l\"> Objektet Buffer er blevet optimeret, hvilket har betydeligt \u00f8get ydeevnen for metoderne Buffer.copy() og Buffer.write().\n<li class=\"l\"> Ydeevnen for modulet node:fs er blevet forbedret, hvor antallet af kald til C++ kode i processen ogs\u00e5 er blevet reduceret.\n<li class=\"l\"> V8 motoren er blevet opdateret til version 12.9, som anvendes i Chromium 129.\n<li class=\"l\"> St\u00f8tte til 32-bit systemer med Windows er blevet fjernet.\n<li class=\"l\"> P\u00e5 grund af implementeringen af funktioner defineret i C++20 standarden i Node.js og V8 motoren er kravene til versionen af GCC compileren blevet h\u00f8jere. For at bygge Node.js kr\u00e6ves nu mindst version 12 af GCC.      <\/ul>\n<p>Node.js-platformen kan bruges til b\u00e5de server-side drift af webapplikationer og til at skabe almindelige klient- og serverbaserede netv\u00e6rksprogrammer. Der er forberedt en stor samling af moduler til at udvide funktionaliteten af applikationer til Node.js, hvor man kan finde moduler med implementeringer  <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/\"   title=\"servere\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1737\">servere<\/a> og HTTP, SMTP, XMPP, DNS, FTP, IMAP, POP3 klienter, moduler til integration med forskellige web-rammer, WebSocket- og Ajax-h\u00e5ndterere, forbindelser til DBMS (MySQL, PostgreSQL, SQLite, MongoDB), templating-motorer, CSS-motorer, implementeringer af kryptografi-algoritmer og autorisationssystemer (OAuth), XML-parsere.    <\/p>\n<p> For handling a large number of concurrent requests, Node.js utilizes an asynchronous code execution model based on event-driven, non-blocking I\/O and the definition of callback handlers. Supported multiplexing methods include epoll, kqueue, \/dev\/poll, and select. The library libuv, which acts as a wrapper around libev on Unix systems and IOCP on Windows, is used for multiplexing connections. The library libeio is employed to create a thread pool for executing DNS queries in a non-blocking mode, while c-ares is integrated for this purpose. All blocking system calls are performed within the thread pool and pass their results back through an unnamed pipe, similar to signal handlers.     <\/p>\n<p>Udf\u00f8relsen af JavaScript-kode underst\u00f8ttes af Googles udviklede V8-motor (Microsoft udvikler desuden en version af Node.js med Chakra-Core-motoren). I sin essens ligner Node.js frameworks som Perl AnyEvent, Ruby Event Machine, Python Twisted og eventh\u00e5ndtering i Tcl, men event loop'en i Node.js er skjult for udvikleren og minder om begivenhedsh\u00e5ndtering i en webapplikation, der k\u00f8rer i en browser.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62066\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 Node.js 23.0.0, \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 JavaScript. Node.js 23.0 \u043e\u0442\u043d\u0435\u0441\u0451\u043d \u043a \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u043c \u0432\u0435\u0442\u043a\u0430\u043c, \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 7 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 (\u0434\u043e \u0438\u044e\u043d\u044f 2025 \u0433\u043e\u0434\u0430). \u0412 \u0431\u043b\u0438\u0436\u0430\u0439\u0448\u0438\u0435 \u0434\u043d\u0438 \u0431\u0443\u0434\u0435\u0442 \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0430 \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u0432\u0435\u0442\u043a\u0438 Node.js 22, \u043a\u043e\u0442\u043e\u0440\u0430\u044f 29 \u043e\u043a\u0442\u044f\u0431\u0440\u044f \u043f\u043e\u043b\u0443\u0447\u0438\u0442 \u0441\u0442\u0430\u0442\u0443\u0441 LTS \u0438 \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043e \u0430\u043f\u0440\u0435\u043b\u044f 2027 \u0433\u043e\u0434\u0430. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u0440\u043e\u0448\u043b\u044b\u0445 LTS-\u0432\u0435\u0442\u043e\u043a Node.js [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-120214","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 Node.js 23.0.0, 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