{"id":120128,"date":"2024-10-10T13:09:15","date_gmt":"2024-10-10T11:09:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupna-platforma-deno-2-0-razvivaemaya-avtorom-node-js"},"modified":"2024-10-10T13:09:15","modified_gmt":"2024-10-10T11:09:15","slug":"dostupna-platforma-deno-2-0-razvivaemaya-avtorom-node-js","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/dostupna-platforma-deno-2-0-razvivaemaya-avtorom-node-js","title":{"rendered":"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430 Deno 2.0, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u0430\u044f \u0430\u0432\u0442\u043e\u0440\u043e\u043c Node.js","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Megjelent a Deno 2.0 platform, amelyet a JavaScript \u00e9s TypeScript nyelven \u00edrt szerveralkalmaz\u00e1sok elk\u00fcl\u00f6n\u00edtett futtat\u00e1s\u00e1ra terveztek, a Chromium alap\u00fa b\u00f6ng\u00e9sz\u0151kben haszn\u00e1lt V8 motor seg\u00edts\u00e9g\u00e9vel. A Deno projektet Ryan Dahl, a Node.js megalkot\u00f3ja fejleszti, c\u00e9lja egy biztons\u00e1gosabb k\u00f6rnyezet ny\u00fajt\u00e1sa \u00e9s a Node.js architekt\u00far\u00e1j\u00e1ban elk\u00f6vetett koncepcion\u00e1lis hib\u00e1k kik\u00fcsz\u00f6b\u00f6l\u00e9se. A biztons\u00e1g n\u00f6vel\u00e9se \u00e9rdek\u00e9ben a V8 motor k\u00f6r\u00fcli keretrendszer Rust nyelven k\u00e9sz\u00fclt, a nem blokkol\u00f3 k\u00e9r\u00e9skezel\u00e9s pedig a Tokio platformot haszn\u00e1lja. A projekt k\u00f3dj\u00e1t MIT licenc alatt terjesztik. A build-ek Linux, Windows \u00e9s macOS rendszerekhez k\u00e9sz\u00fcltek.        <\/p>\n<p>Az \u00faj \u00e1gazat el\u0151k\u00e9sz\u00edt\u00e9se sor\u00e1n a r\u00e9gi JavaScript infrastrukt\u00far\u00e1val val\u00f3 kompatibilit\u00e1sra \u00e9s a t\u00e1mogatott JavaScript projektek spektrum\u00e1nak b\u0151v\u00edt\u00e9s\u00e9re \u00f6sszpontos\u00edtottak, an\u00e9lk\u00fcl, hogy a biztons\u00e1g rov\u00e1s\u00e1ra ment volna. A v\u00e1ltoz\u00e1sok k\u00f6z\u00f6tt szerepel:  <\/p>\n<ul>\n<li class=\"l\"> A Node.js \u00e9s npm visszamen\u0151leges kompatibilit\u00e1sa lehet\u0151v\u00e9 teszi a m\u00f3dos\u00edtatlan Node.js alkalmaz\u00e1sok futtat\u00e1s\u00e1t. A Node.js t\u00e1mogat\u00e1sa emellett lehet\u0151v\u00e9 teszi a megl\u00e9v\u0151 projektek fokozatos \u00e1t\u00e1ll\u00edt\u00e1s\u00e1t Deno-ra, vagy a Deno projektekben val\u00f3 NPM f\u00fcgg\u0151s\u00e9gek csatlakoztat\u00e1s\u00e1t a csomagok import\u00e1l\u00e1s\u00e1n\u00e1l az &#171;npm:&#187; specifik\u00e1tor megad\u00e1s\u00e1val a deno.json f\u00e1jlban.\n<li class=\"l\"> Be\u00e9p\u00edtett t\u00e1mogat\u00e1st kaptak a package.json f\u00e1jl \u00e9s a node_modules k\u00f6nyvt\u00e1r sz\u00e1m\u00e1ra, amelyeket a Node.js haszn\u00e1l.\n<li class=\"l\"> T\u00e1mogatott a priv\u00e1t NPM-repozit\u00f3riumok haszn\u00e1lata, amelyeket a &#171;.npmrc&#187; f\u00e1jlok hat\u00e1roznak meg.\n<li class=\"l\"> T\u00e1mogatj\u00e1k a n\u00e9pszer\u0171 JavaScript keretrendszereket, mint p\u00e9ld\u00e1ul a Next.js, Astro, Remix, Angular, SvelteKit \u00e9s QwikCity.\n<li class=\"l\"> Bevezett\u00e9k a npm (workspace) munkahelyek \u00e9s a mono-t\u00e1rol\u00f3k (monorepo) t\u00e1mogat\u00e1s\u00e1t az elk\u00fcl\u00f6n\u00edtett f\u00fcgg\u0151s\u00e9gkezel\u00e9ssel.\n<li class=\"l\"> \u00daj csomagkezel\u0151 parancsok ker\u00fcltek bevezet\u00e9sre: &#171;deno install&#187; a f\u00fcgg\u0151s\u00e9gek telep\u00edt\u00e9s\u00e9re, &#171;deno add&#187; a csomagok hozz\u00e1ad\u00e1s\u00e1ra a package.json vagy deno.json f\u00e1jlhoz, &#171;deno remove&#187; a csomagok elt\u00e1vol\u00edt\u00e1s\u00e1ra. Megjegyzend\u0151, hogy a &#171;deno install&#187; k\u00f6r\u00fclbel\u00fcl 15%-kal gyorsabb az npm-n\u00e9l, ha a csomagok nincsenek a gyors\u00edt\u00f3t\u00e1rban, \u00e9s 90%-kal gyorsabb, ha a csomag a gyors\u00edt\u00f3t\u00e1rban van (t\u00e1mogatott a node_modules \u00e9s a saj\u00e1t glob\u00e1lis gyors\u00edt\u00f3t\u00e1r is).\n<li class=\"l\"> A szabv\u00e1nyos k\u00f6nyvt\u00e1r stabiliz\u00e1lva lett.\n<li class=\"l\"> Hossz\u00fa t\u00e1v\u00fa t\u00e1mogat\u00e1si ciklus (LTS) biztos\u00edtva van.\n<li class=\"l\"> Bemutatja a JSR-t \u2014 egy olyan t\u00e1rol\u00f3t, amely JavaScript \u00e9s TypeScript k\u00f6nyvt\u00e1rakat tartalmaz, amelyeket k\u00fcl\u00f6nb\u00f6z\u0151 JavaScript Runtime k\u00f6rnyezetekben lehet haszn\u00e1lni.\n<li class=\"l\"> A &#171;deno fmt&#187; parancsban lehet\u0151s\u00e9g ny\u00edlt a tartalom form\u00e1z\u00e1s\u00e1ra HTML, CSS \u00e9s YAML form\u00e1tumokban.\n<li class=\"l\"> A &#171;deno lint&#187; parancshoz hozz\u00e1adt\u00e1k a Node.js specifikus szab\u00e1lyok \u00e9s jav\u00edt\u00e1sok t\u00e1mogat\u00e1s\u00e1t.\n<li class=\"l\"> A &#171;deno test&#187; parancsban lehet\u0151s\u00e9g ny\u00edlt a node:test haszn\u00e1lat\u00e1val k\u00e9sz\u00fclt tesztek futtat\u00e1s\u00e1ra.\n<li class=\"l\"> A &#171;deno task&#187; parancsban megval\u00f3s\u00edtott\u00e1k a szkriptek futtat\u00e1s\u00e1nak t\u00e1mogat\u00e1s\u00e1t a package.json r\u00e9v\u00e9n.\n<li class=\"l\"> A &#171;deno compile&#187; parancsban lehet\u0151s\u00e9g ny\u00edlt a k\u00f3d digit\u00e1lis al\u00e1\u00edr\u00e1s\u00e1nak haszn\u00e1lat\u00e1ra.\n<li class=\"l\"> A &#171;deno serve&#187; parancsban megval\u00f3s\u00edtott\u00e1k a HTTP-szerverek m\u0171veleteinek p\u00e1rhuzamos\u00edt\u00e1s\u00e1t, t\u00f6bb CPU-mag haszn\u00e1lat\u00e1val.\n<li class=\"l\"> A &#171;deno coverage&#187; parancsban lehet\u0151s\u00e9g ny\u00edlt a jelent\u00e9sek HTML form\u00e1tumban val\u00f3 ment\u00e9s\u00e9re.\n<li class=\"l\"> Teljes\u00edtm\u00e9nyoptimaliz\u00e1l\u00e1s t\u00f6rt\u00e9nt.    <center><img decoding=\"async\" alt=\"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430 Deno 2.0, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u0430\u044f \u0430\u0432\u0442\u043e\u0440\u043e\u043c Node.js\" src=\"\/wp-content\/uploads\/2024\/10\/be70c578e8bba6dfbe01cca4a159b36e.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/ul>\n<p>A Deno f\u0151bb jellemz\u0151i:  <\/p>\n<ul>\n<li class=\"l\"> Az alap\u00e9rtelmezett konfigur\u00e1ci\u00f3 biztons\u00e1gorient\u00e1lt. A f\u00e1jlokkal val\u00f3 kapcsolatok, a h\u00e1l\u00f3zati lehet\u0151s\u00e9gek \u00e9s az alap\u00e9rtelmezett k\u00f6rnyezeti v\u00e1ltoz\u00f3khoz val\u00f3 hozz\u00e1f\u00e9r\u00e9s blokkolva van, \u00e9s kifejezett enged\u00e9lyez\u00e9st ig\u00e9nyel. Az alap\u00e9rtelmezett alkalmaz\u00e1sok izol\u00e1lt sandbox k\u00f6rnyezetben futnak, \u00e9s nem f\u00e9rhetnek hozz\u00e1 a rendszer funkci\u00f3ihoz kifejezett jogosults\u00e1gok biztos\u00edt\u00e1sa n\u00e9lk\u00fcl;    <\/li>\n<li class=\"l\"> A JavaScript mellett a TypeScript nyelv be\u00e9p\u00edtett t\u00e1mogat\u00e1sa. A t\u00edpusellen\u0151rz\u00e9shez \u00e9s JavaScript gener\u00e1l\u00e1s\u00e1hoz a nat\u00edv TypeScript ford\u00edt\u00f3t haszn\u00e1lj\u00e1k, ami teljes\u00edtm\u00e9nycs\u00f6kken\u00e9st eredm\u00e9nyez a JavaScript V8-as elemz\u00e9s\u00e9hez k\u00e9pest;      <\/li>\n<li class=\"l\"> A runtime egy \u00f6n\u00e1ll\u00f3, v\u00e9grehajthat\u00f3 f\u00e1jl form\u00e1j\u00e1ban \u00e9rkezik (&#171;deno&#187;). Az alkalmaz\u00e1sok Deno seg\u00edts\u00e9g\u00e9vel t\u00f6rt\u00e9n\u0151 futtat\u00e1s\u00e1hoz elegend\u0151 egy v\u00e9grehajthat\u00f3 f\u00e1jlt let\u00f6lteni a saj\u00e1t platformj\u00e1ra, kb. 40 MB m\u00e9retben, k\u00fcls\u0151 f\u00fcgg\u0151s\u00e9gek n\u00e9lk\u00fcl, \u00e9s nem ig\u00e9nyel k\u00fcl\u00f6n telep\u00edt\u00e9st a rendszerbe. A deno nem monolitikus alkalmaz\u00e1s, hanem egy Rust csomagokb\u00f3l \u00e1ll\u00f3 gy\u0171jtem\u00e9ny (deno_core, rusty_v8), amelyek k\u00fcl\u00f6n-k\u00fcl\u00f6n is haszn\u00e1lhat\u00f3k.      <\/li>\n<li class=\"l\"> A program launch and module loading can utilize URL addressing. For example, to run the program welcome.js, the command can be used: \"deno https:\/\/deno.land\/std\/examples\/welcome.js\". Code from external resources is downloaded and cached on the local system, but is never updated automatically (to update, the application must be explicitly launched with the flag \"--reload\");      <\/li>\n<li class=\"l\"> Hat\u00e9kony HTTP h\u00e1l\u00f3zati k\u00e9r\u00e9sek kezel\u00e9se az alkalmaz\u00e1sokban, a platform a nagy teljes\u00edtm\u00e9ny\u0171 h\u00e1l\u00f3zati alkalmaz\u00e1sok k\u00e9sz\u00edt\u00e9s\u00e9re lett tervezve;    <\/li>\n<li class=\"l\"> Lehet\u0151s\u00e9g univerz\u00e1lis webalkalmaz\u00e1sok l\u00e9trehoz\u00e1s\u00e1ra, amelyek Deno-ban \u00e9s a hagyom\u00e1nyos webb\u00f6ng\u00e9sz\u0151ben is futtathat\u00f3k;    <\/li>\n<li class=\"l\"> Alapvet\u0151 modulok standard k\u00e9szlete, amelyek haszn\u00e1lata nem ig\u00e9nyel k\u00fcls\u0151 f\u00fcgg\u0151s\u00e9gekhez val\u00f3 k\u00f6t\u0151d\u00e9st. A standard gy\u0171jtem\u00e9ny moduljai tov\u00e1bbi audit\u00e1l\u00e1son \u00e9s kompatibilit\u00e1si ellen\u0151rz\u00e9sen estek \u00e1t;      <\/li>\n<li class=\"l\"> In addition to runtime, the Deno platform also acts as a package manager and allows modules to be accessed via URL within the code. For instance, to load a module, one can specify in the code: \"import * as log from 'https:\/\/deno.land\/std\/log\/mod.ts'. Files downloaded from external <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/\"   title=\"szerverek\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1733\">szerverek<\/a> URLs are cached. The binding to module versions is determined through specifying version numbers within URLs, for example: \"https:\/\/unpkg.com\/liltest@0.0.5\/dist\/liltest.js\";\n<li class=\"l\"> A Web szabv\u00e1nyok haszn\u00e1lat\u00e1ra val\u00f3 orient\u00e1ci\u00f3, Promise, fetch \u00e9s ECMAScript modulok t\u00e1mogat\u00e1sa.\n<li class=\"l\"> Kompatibilit\u00e1s az NPM t\u00e1rol\u00f3ban elhelyezett \u00e9s Node.js platformra k\u00e9sz\u00fclt csomagokkal.    <\/li>\n<li class=\"l\"> The system includes a dependency inspection feature (the command \"deno info\") and a code formatting utility (deno fmt);    <\/li>\n<li class=\"l\"> Az \u00f6sszes alkalmaz\u00e1sk\u00f3d egyetlen JavaScript f\u00e1jlba egyes\u00edthet\u0151.      <\/ul>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62024\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Deno 2.0, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0439 \u0434\u043b\u044f \u043e\u0431\u043e\u0441\u043e\u0431\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0430\u0445 JavaScript \u0438 TypeScript \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0434\u0432\u0438\u0436\u043a\u0430 V8, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0433\u043e \u0432 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430\u0445 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 Chromium. \u041f\u0440\u043e\u0435\u043a\u0442 Deno \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u0420\u0430\u0439\u0430\u043d \u0414\u0430\u043b\u044c (Ryan Dahl), \u0441\u043e\u0437\u0434\u0430\u0442\u0435\u043b\u044c Node.js, \u0441 \u0446\u0435\u043b\u044c\u044e \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u043e\u043b\u0435\u0435 \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u043e\u0433\u043e \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0446\u0435\u043f\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u043e\u0448\u0438\u0431\u043e\u043a, \u0434\u043e\u043f\u0443\u0449\u0435\u043d\u043d\u044b\u0445 \u0432 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0435 Node.js. \u0414\u043b\u044f \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044f 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