{"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\/cs\/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>Byla vyd\u00e1na verze platformy Deno 2.0, ur\u010den\u00e1 pro izolovan\u00e9 spu\u0161t\u011bn\u00ed serverov\u00fdch aplikac\u00ed v jazyc\u00edch JavaScript a TypeScript s vyu\u017eit\u00edm enginu V8, aplikovan\u00e9ho v prohl\u00ed\u017ee\u010d\u00edch zalo\u017een\u00fdch na Chromium. Projekt Deno vede Ryan Dahl, tv\u016frce Node.js, s c\u00edlem poskytnout bezpe\u010dn\u011bj\u0161\u00ed prost\u0159ed\u00ed a odstranit koncep\u010dn\u00ed chyby, kter\u00e9 byly u\u010din\u011bny v architektu\u0159e Node.js. Pro zv\u00fd\u0161en\u00ed bezpe\u010dnosti je obal kolem enginu V8 naps\u00e1n v jazyce Rust a pro zpracov\u00e1n\u00ed po\u017eadavk\u016f v neblokuj\u00edc\u00edm re\u017eimu se pou\u017e\u00edv\u00e1 platforma Tokio. K\u00f3d projektu je \u0161\u00ed\u0159en pod licenc\u00ed MIT. Sestavy byly p\u0159ipraveny pro Linux, Windows a macOS.        <\/p>\n<p>P\u0159i p\u0159\u00edprav\u011b nov\u00e9 v\u011btve byla kladena hlavn\u00ed d\u016fraz na kompatibilitu se starou infrastrukturou JavaScriptu a na roz\u0161\u00ed\u0159en\u00ed spektra podporovan\u00fdch JavaScriptov\u00fdch projekt\u016f bez ohro\u017een\u00ed bezpe\u010dnosti. Mezi zm\u011bnami:  <\/p>\n<ul>\n<li class=\"l\"> Byla zaji\u0161t\u011bna zp\u011btn\u00e1 kompatibilita s Node.js a npm, co\u017e umo\u017e\u0148uje spou\u0161t\u011bn\u00ed nemodifikovan\u00fdch aplikac\u00ed vytvo\u0159en\u00fdch pro Node.js. Podpora Node.js tak\u00e9 umo\u017e\u0148uje postupn\u00e9 p\u0159ech\u00e1zen\u00ed existuj\u00edc\u00edch projekt\u016f z Node.js na Deno nebo p\u0159ipojov\u00e1n\u00ed z\u00e1vislost\u00ed z NPM k projekt\u016fm Deno pomoc\u00ed specifik\u00e1toru &#171;npm:&#187; p\u0159i importu bal\u00ed\u010dk\u016f v deno.json.\n<li class=\"l\"> Byla p\u0159id\u00e1na vestav\u011bn\u00e1 podpora pro soubor package.json a adres\u00e1\u0159 s moduly node_modules, pou\u017e\u00edvan\u00fdmi v Node.js.\n<li class=\"l\"> Byla zaji\u0161t\u011bna podpora priv\u00e1tn\u00edch NPM repozit\u00e1\u0159\u016f definovan\u00fdch pomoc\u00ed soubor\u016f &#171;.npmrc&#187;.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora popul\u00e1rn\u00edch JavaScriptov\u00fdch framework\u016f, jako jsou Next.js, Astro, Remix, Angular, SvelteKit a QwikCity.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora pracovn\u00edch prostor\u016f npm (workspace) a mono-repozit\u00e1\u0159\u016f (monorepo) s odd\u011blen\u00fdm zpracov\u00e1n\u00edm z\u00e1vislost\u00ed.\n<li class=\"l\"> Byly p\u0159id\u00e1ny nov\u00e9 p\u0159\u00edkazy pro spr\u00e1vu bal\u00ed\u010dk\u016f: &#171;deno install&#187; pro instalaci z\u00e1vislost\u00ed, &#171;deno add&#187; pro p\u0159id\u00e1n\u00ed bal\u00ed\u010dk\u016f do package.json nebo deno.json, &#171;deno remove&#187; pro odstran\u011bn\u00ed bal\u00ed\u010dk\u016f. Uv\u00e1d\u00ed se, \u017ee &#171;deno install&#187; funguje p\u0159ibli\u017en\u011b 15kr\u00e1t rychleji ne\u017e npm, pokud bal\u00ed\u010dky nejsou v cache, a 90 % rychleji, kdy\u017e je bal\u00ed\u010dek v cache (podporuje jak node_modules, tak vlastn\u00ed glob\u00e1ln\u00ed cache).\n<li class=\"l\"> Byla stabilizov\u00e1na standardn\u00ed knihovna.\n<li class=\"l\"> Byl zaji\u0161t\u011bn dlouh\u00fd cyklus podpory (LTS).\n<li class=\"l\"> Byl p\u0159edstaven JSR \u2014 repozit\u00e1\u0159 s JavaScript a TypeScript knihovnami, kter\u00e9 lze vyu\u017e\u00edvat v r\u016fzn\u00fdch JavaScript Runtime.\n<li class=\"l\"> V p\u0159\u00edkazu &#171;deno fmt&#187; byla p\u0159id\u00e1na mo\u017enost form\u00e1tov\u00e1n\u00ed obsahu ve form\u00e1tech HTML, CSS a YAML.\n<li class=\"l\"> Do p\u0159\u00edkazu &#171;deno lint&#187; byla p\u0159id\u00e1na podpora pravidel a oprav specifick\u00fdch pro Node.js.\n<li class=\"l\"> V p\u0159\u00edkazu &#171;deno test&#187; byla implementov\u00e1na mo\u017enost spou\u0161t\u011bn\u00ed test\u016f vytvo\u0159en\u00fdch pomoc\u00ed node:test.\n<li class=\"l\"> V p\u0159\u00edkazu &#171;deno task&#187; byla zavedena podpora pro spou\u0161t\u011bn\u00ed skript\u016f prost\u0159ednictv\u00edm package.json.\n<li class=\"l\"> V p\u0159\u00edkazu &#171;deno compile&#187; byla p\u0159id\u00e1na mo\u017enost podepisov\u00e1n\u00ed k\u00f3du digit\u00e1ln\u00edm podpisem.\n<li class=\"l\"> V p\u0159\u00edkazu &#171;deno serve&#187; bylo implementov\u00e1no paralelizov\u00e1n\u00ed operac\u00ed HTTP server\u016f s vyu\u017eit\u00edm n\u011bkolika CPU jader.\n<li class=\"l\"> V p\u0159\u00edkazu &#171;deno coverage&#187; byla p\u0159id\u00e1na podpora pro ukl\u00e1d\u00e1n\u00ed zpr\u00e1v ve form\u00e1tu HTML.\n<li class=\"l\"> Provedena optimalizace v\u00fdkonu.    <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>Hlavn\u00ed vlastnosti Deno:  <\/p>\n<ul>\n<li class=\"l\"> Zam\u011b\u0159en\u00ed na bezpe\u010dnost v konfiguraci podle v\u00fdchoz\u00edho nastaven\u00ed. P\u0159\u00edstupy k soubor\u016fm, s\u00ed\u0165ov\u00e9 schopnosti a p\u0159\u00edstup k prom\u011bnn\u00fdm prost\u0159ed\u00ed jsou ve v\u00fdchoz\u00edm nastaven\u00ed blokov\u00e1ny a vy\u017eaduj\u00ed explicitn\u00ed povolen\u00ed. Aplikace se ve v\u00fdchoz\u00edm nastaven\u00ed spou\u0161t\u011bj\u00ed v izolovan\u00fdch sandboxov\u00fdch prost\u0159ed\u00edch a nemohou p\u0159istupovat k syst\u00e9mov\u00fdm schopnostem bez ud\u011blen\u00ed jasn\u00fdch opr\u00e1vn\u011bn\u00ed;    <\/li>\n<li class=\"l\"> Vestav\u011bn\u00e1 podpora jazyka TypeScript vedle JavaScriptu. Pro ov\u011b\u0159ov\u00e1n\u00ed typ\u016f a generov\u00e1n\u00ed JavaScriptu je pou\u017eit nativn\u00ed TypeScript kompil\u00e1tor, co\u017e vede k poklesu v\u00fdkonu ve srovn\u00e1n\u00ed s anal\u00fdzou JavaScriptu v V8;      <\/li>\n<li class=\"l\"> Runtime je dod\u00e1v\u00e1no ve form\u011b jednoho samostatn\u00e9ho spustiteln\u00e9ho souboru (&#171;deno&#187;). Pro spu\u0161t\u011bn\u00ed aplikac\u00ed pomoc\u00ed Deno sta\u010d\u00ed st\u00e1hnout jeden spustiteln\u00fd soubor pro svou platformu, o velikosti p\u0159ibli\u017en\u011b 40 MB, bez extern\u00edch z\u00e1vislost\u00ed a bez nutnosti jak\u00e9koli zvl\u00e1\u0161tn\u00ed instalace do syst\u00e9mu. Deno nav\u00edc nen\u00ed monolitn\u00ed aplikace, ale p\u0159edstavuje sb\u00edrku crate bal\u00ed\u010dk\u016f v Rustu (deno_core, rusty_v8), kter\u00e9 lze pou\u017e\u00edvat samostatn\u011b;      <\/li>\n<li class=\"l\"> P\u0159i spu\u0161t\u011bn\u00ed programu a tak\u00e9 pro na\u010d\u00edt\u00e1n\u00ed modul\u016f lze pou\u017e\u00edt adresaci p\u0159es URL. Nap\u0159\u00edklad pro spu\u0161t\u011bn\u00ed programu welcome.js lze pou\u017e\u00edt p\u0159\u00edkaz &#171;deno https:\/\/deno.land\/std\/examples\/welcome.js&#187;. K\u00f3d z extern\u00edch zdroj\u016f se na\u010d\u00edt\u00e1 a ukl\u00e1d\u00e1 do mezipam\u011bti na m\u00edstn\u00edm syst\u00e9mu, ale nikdy se automaticky neaktualizuje (pro aktualizaci je nutn\u00e9 v\u00fdslovn\u011b spustit aplikaci s p\u0159\u00edznakem &#171;&#8212;reload&#187;);      <\/li>\n<li class=\"l\"> Efektivn\u00ed zpracov\u00e1n\u00ed s\u00ed\u0165ov\u00fdch po\u017eadavk\u016f p\u0159es HTTP, platforma je navr\u017eena pro vytv\u00e1\u0159en\u00ed vysoce v\u00fdkonn\u00fdch s\u00ed\u0165ov\u00fdch aplikac\u00ed;    <\/li>\n<li class=\"l\"> Mo\u017enost vytv\u00e1\u0159en\u00ed univerz\u00e1ln\u00edch webov\u00fdch aplikac\u00ed, kter\u00e9 mohou b\u011b\u017eet jak v Deno, tak v b\u011b\u017en\u00e9m webov\u00e9m prohl\u00ed\u017ee\u010di;    <\/li>\n<li class=\"l\"> Existence standardn\u00ed sady modul\u016f, jejich\u017e pou\u017e\u00edv\u00e1n\u00ed nevy\u017eaduje vazby na extern\u00ed z\u00e1vislosti. Moduly ze standardn\u00ed kolekce pro\u0161ly dodate\u010dn\u00fdm auditem a kontrolou kompatibility;      <\/li>\n<li class=\"l\"> Krom\u011b runtime platforma Deno tak\u00e9 funguje jako spr\u00e1vce bal\u00ed\u010dk\u016f a umo\u017e\u0148uje v r\u00e1mci k\u00f3du odkazovat na moduly pomoc\u00ed URL. Nap\u0159\u00edklad k na\u010dten\u00ed modulu m\u016f\u017eete v k\u00f3du uv\u00e9st \u201eimport * as log from \u201ehttps:\/\/deno.land\/std\/log\/mod.ts\u201c. Soubory sta\u017een\u00e9 z extern\u00edch <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/\"   title=\"servery\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1733\">servery<\/a> URL se ukl\u00e1daj\u00ed do cache. Verze modul\u016f jsou ur\u010deny uveden\u00edm \u010d\u00edsel verz\u00ed uvnit\u0159 URL, nap\u0159\u00edklad \u201ehttps:\/\/unpkg.com\/liltest@0.0.5\/dist\/liltest.js\u201c;\n<li class=\"l\"> Orientace na pou\u017eit\u00ed webov\u00fdch standard\u016f, podpora Promise, fetch a ECMAScript modul\u016f.\n<li class=\"l\"> Kompatibilita s bal\u00ed\u010dky um\u00edst\u011bn\u00fdmi v repozit\u00e1\u0159i NPM a vytvo\u0159en\u00fdmi pro platformu Node.js.    <\/li>\n<li class=\"l\"> Sou\u010d\u00e1st\u00ed integrovan\u00e9ho syst\u00e9mu je tak\u00e9 syst\u00e9m inspekce z\u00e1vislost\u00ed (p\u0159\u00edkaz &#171;deno info&#187;) a n\u00e1stroj pro form\u00e1tov\u00e1n\u00ed k\u00f3du (deno fmt);    <\/li>\n<li class=\"l\"> V\u0161echny skripty aplikace lze slou\u010dit do jednoho JavaScript souboru.      <\/ul>\n<p>Zdroj: <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 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043e\u0431\u0432\u044f\u0437\u043a\u0430 \u0432\u043e\u043a\u0440\u0443\u0433 \u0434\u0432\u0438\u0436\u043a\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":120129,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-120128","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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 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