{"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\/sk\/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>Vy\u0161la verzia platformy Deno 2.0, ur\u010den\u00e1 pre izolovan\u00e9 vykon\u00e1vanie serverov\u00fdch aplik\u00e1ci\u00ed v jazykoch JavaScript a TypeScript s pou\u017e\u00edvan\u00edm enginu V8, ktor\u00fd sa vyu\u017e\u00edva v prehliada\u010doch na b\u00e1ze Chromium. Projekt Deno rozv\u00edja Ryan Dahl, zakladate\u013e Node.js, s cie\u013eom poskytn\u00fa\u0165 bezpe\u010dnej\u0161ie prostredie a odstr\u00e1ni\u0165 koncep\u010dn\u00e9 chyby, ktor\u00fdch sa dopustila architekt\u00fara Node.js. Pre zv\u00fd\u0161enie bezpe\u010dnosti je obal okolo enginu V8 nap\u00edsan\u00fd v jazyku Rust, a na spracovanie po\u017eiadaviek v neblokuj\u00facom re\u017eime sa pou\u017e\u00edva platforma Tokio. K\u00f3d projektu je distrib\u00fate pod licenciou MIT. S\u00fa\u010dasti s\u00fa pripraven\u00e9 pre Linux, Windows a macOS.        <\/p>\n<p>Pri pr\u00edprave novej vetvy sa hlavn\u00e1 pozornos\u0165 venovala kompatibilite so starou infra\u0161trukt\u00farou JavaScriptu a roz\u0161\u00edreniu spektra podporovan\u00fdch JavaScriptov\u00fdch projektov bez ohrozenia zabezpe\u010denia. Medzi zmenami:  <\/p>\n<ul>\n<li class=\"l\"> Zabezpe\u010den\u00e1 sp\u00e4tn\u00e1 kompatibilita s Node.js a npm, ktor\u00e1 umo\u017e\u0148uje sp\u00fa\u0161\u0165a\u0165 nemodifikovan\u00e9 aplik\u00e1cie vytvoren\u00e9 pre Node.js. Podpora Node.js tie\u017e pon\u00faka mo\u017enos\u0165 postupne prev\u00e1dza\u0165 existuj\u00face projekty z Node.js na pou\u017eitie Deno alebo pripoji\u0165 z\u00e1vislosti z NPM do projektov Deno prostredn\u00edctvom \u0161pecifik\u00e1tora &#171;npm:&#187; pri importe bal\u00edkov do deno.json.\n<li class=\"l\"> Bola pridan\u00e1 zabudovan\u00e1 podpora s\u00faboru package.json a adres\u00e1ra s modulmi node_modules, pou\u017e\u00edvan\u00fdmi v Node.js.\n<li class=\"l\"> Zabezpe\u010den\u00e1 podpora s\u00fakromn\u00fdch NPM repozit\u00e1rov definovan\u00fdch prostredn\u00edctvom s\u00faborov &#171;.npmrc&#187;.\n<li class=\"l\"> Bola pridan\u00e1 podpora popul\u00e1rnych JavaScript frameworkov, ako s\u00fa Next.js, Astro, Remix, Angular, SvelteKit a QwikCity.\n<li class=\"l\"> Bola pridan\u00e1 podpora pracovn\u00fdch priestorov npm (workspace) a mono-repozit\u00e1rov (monorepo) s oddelen\u00fdm spracovan\u00edm z\u00e1vislost\u00ed.\n<li class=\"l\"> Pridan\u00e9 nov\u00e9 pr\u00edkazy na spr\u00e1vu bal\u00edkov: &#171;deno install&#187; pre in\u0161tal\u00e1ciu z\u00e1vislost\u00ed, &#171;deno add&#187; pre prid\u00e1vanie bal\u00edkov do package.json alebo deno.json, &#171;deno remove&#187; pre odstra\u0148ovanie bal\u00edkov. Je zd\u00f4raznen\u00e9, \u017ee &#171;deno install&#187; funguje pribli\u017ene 15-kr\u00e1t r\u00fdchlej\u0161ie ako npm pri absencii bal\u00edkov v cache a o 90% r\u00fdchlej\u0161ie pri pr\u00edtomnosti bal\u00edka v cache (podporuje ako node_modules, tak aj vlastn\u00fa glob\u00e1lnu cache).\n<li class=\"l\"> Bola stabilizovan\u00e1 \u0161tandardn\u00e1 kni\u017enica.\n<li class=\"l\"> Bol zabezpe\u010den\u00fd dlh\u00fd cyklus podpory (LTS).\n<li class=\"l\"> Predstaven\u00fd JSR \u2014 repozit\u00e1r s JavaScript a TypeScript kni\u017enicami, ktor\u00e9 je mo\u017en\u00e9 pou\u017ei\u0165 v r\u00f4znych JavaScript runtime prostrediach.\n<li class=\"l\"> V pr\u00edkaze &#171;deno fmt&#187; pribudla mo\u017enos\u0165 form\u00e1tovania obsahu vo form\u00e1toch HTML, CSS a YAML.\n<li class=\"l\"> Do pr\u00edkazu &#171;deno lint&#187; pridan\u00e1 podpora pravidiel a opr\u00e1v \u0161pecifick\u00fdch pre Node.js.\n<li class=\"l\"> V pr\u00edkaze &#171;deno test&#187; implementovan\u00e1 mo\u017enos\u0165 sp\u00fa\u0161\u0165ania testov vytvoren\u00fdch pomocou node:test.\n<li class=\"l\"> V pr\u00edkaze &#171;deno task&#187; zaveden\u00e1 podpora sp\u00fa\u0161\u0165ania skriptov cez package.json.\n<li class=\"l\"> V pr\u00edkaze &#171;deno compile&#187; pribudla mo\u017enos\u0165 overenia k\u00f3du digit\u00e1lnym podpisom.\n<li class=\"l\"> V pr\u00edkaze &#171;deno serve&#187; implementovan\u00e9 paralelizovanie oper\u00e1ci\u00ed HTTP serverov s vyu\u017eit\u00edm viacer\u00fdch CPU jadier.\n<li class=\"l\"> V pr\u00edkaze &#171;deno coverage&#187; pribudla podpora ukladania spr\u00e1v vo form\u00e1te HTML.\n<li class=\"l\"> Bol vykonan\u00fd v\u00fdkonov\u00fd optimaliz\u00e1cia.    <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\u00e9 funkcie Deno:  <\/p>\n<ul>\n<li class=\"l\"> Orient\u00e1cia na bezpe\u010dnos\u0165 v predvolenej konfigur\u00e1cii. Pr\u00edstup k s\u00faborom, sie\u0165ov\u00fdm funkci\u00e1m a k premenn\u00fdm prostredia je predvolene zablokovan\u00fd a vy\u017eaduje explicitn\u00e9 povolenie. Aplik\u00e1cie sa predvolene sp\u00fa\u0161\u0165aj\u00fa v izolovan\u00fdch sandboxov\u00fdch prostrediach a nem\u00f4\u017eu z\u00edska\u0165 pr\u00edstup k syst\u00e9mov\u00fdm funkci\u00e1m bez poskytnutia explicitn\u00fdch opr\u00e1vnen\u00ed;    <\/li>\n<li class=\"l\"> Integrovan\u00e1 podpora jazyka TypeScript okrem JavaScriptu. Na kontrolu typov a gener\u00e1ciu JavaScriptu je zapojen\u00fd intern\u00fd TypeScript kompil\u00e1tor, \u010do vedie k poklesu v\u00fdkonu v porovnan\u00ed s anal\u00fdzou JavaScriptu vo V8;      <\/li>\n<li class=\"l\"> Runtime je dod\u00e1van\u00e9 vo forme jedn\u00e9ho samostatn\u00e9ho spustite\u013en\u00e9ho s\u00faboru (&#171;deno&#187;). Pre sp\u00fa\u0161\u0165anie aplik\u00e1ci\u00ed pomocou Deno sta\u010d\u00ed stiahnu\u0165 pre svoju platformu jeden spustite\u013en\u00fd s\u00fabor, s ve\u013ekos\u0165ou okolo 40 MB, bez extern\u00fdch z\u00e1vislost\u00ed a bez potreby akejsi osobitnej in\u0161tal\u00e1cie do syst\u00e9mu. Deno nie je monolitn\u00e1 aplik\u00e1cia, ale predstavuje kolekciu crate bal\u00edkov na Rust (deno_core, rusty_v8), ktor\u00e9 m\u00f4\u017eu by\u0165 pou\u017eit\u00e9 samostatne;      <\/li>\n<li class=\"l\"> Pri spusten\u00ed programu, ako aj na na\u010d\u00edtanie modulov je mo\u017en\u00e9 pou\u017e\u00edva\u0165 adresovanie cez URL. Napr\u00edklad na spustenie programu welcome.js m\u00f4\u017eete pou\u017ei\u0165 pr\u00edkaz \u201edeno https:\/\/deno.land\/std\/examples\/welcome.js\u201c. K\u00f3d z extern\u00fdch zdrojov sa na\u010d\u00edtava a cacheuje na lok\u00e1lnom syst\u00e9me, av\u0161ak nikdy sa automaticky neaktualizuje (na aktualiz\u00e1ciu je potrebn\u00e9 explicitne spusti\u0165 aplik\u00e1ciu s flagom \u201e--reload\u201c);      <\/li>\n<li class=\"l\"> Efekt\u00edvne spracovanie sie\u0165ov\u00fdch po\u017eiadaviek cez HTTP, platforma je ur\u010den\u00e1 na vytv\u00e1ranie vysokov\u00fdkonn\u00fdch sie\u0165ov\u00fdch aplik\u00e1ci\u00ed;    <\/li>\n<li class=\"l\"> Mo\u017enos\u0165 vytv\u00e1rania univerz\u00e1lnych webov\u00fdch aplik\u00e1ci\u00ed, ktor\u00e9 m\u00f4\u017eu fungova\u0165 ako v Deno, tak aj v be\u017enom webovom prehliada\u010di;    <\/li>\n<li class=\"l\"> Pr\u00edtomnos\u0165 \u0161tandardn\u00e9ho s\u00faboru modulov, ktor\u00fdch pou\u017e\u00edvanie si nevy\u017eaduje z\u00e1vislos\u0165 od vonkaj\u0161\u00edch zdrojov. Moduly zo \u0161tandardnej kolekcie pre\u0161li dodato\u010dn\u00fdm auditom a kontrolou kompatibility;      <\/li>\n<li class=\"l\"> Okrem runtime platforma Deno tie\u017e pln\u00ed \u00falohu spr\u00e1vy bal\u00edkov a umo\u017e\u0148uje v k\u00f3de pristupova\u0165 k modulom pomocou URL. Napr\u00edklad na na\u010d\u00edtanie modulu m\u00f4\u017eete v k\u00f3de uvies\u0165 \u201eimport * as log from 'https:\/\/deno.land\/std\/log\/mod.ts'. S\u00fabory na\u010d\u00edtan\u00e9 z extern\u00fdch <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sk\/server\/\"   title=\"serverov\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1733\">serverov<\/a> po URL sa cachuj\u00fa. Prilepenie na verzie modulov sa ur\u010duje cez uvedenie \u010d\u00edsel verzi\u00ed v URL, napr\u00edklad \u201ehttps:\/\/unpkg.com\/liltest@0.0.5\/dist\/liltest.js\u201c;\n<li class=\"l\"> Orient\u00e1cia na pou\u017e\u00edvanie webov\u00fdch \u0161tandardov, podpora Promise, fetch a modulov ECMAScript.\n<li class=\"l\"> Kompatibilita s bal\u00edkmi umiestnen\u00fdmi v repozit\u00e1ri NPM a vytvoren\u00fdmi pre platformu Node.js.    <\/li>\n<li class=\"l\"> S\u00fa\u010das\u0165ou je integrovan\u00fd syst\u00e9m na kontrolu z\u00e1vislost\u00ed (pr\u00edkaz \u201edeno info\u201c) a n\u00e1stroj na form\u00e1tovanie k\u00f3du (deno fmt);    <\/li>\n<li class=\"l\"> V\u0161etky skripty aplik\u00e1cie m\u00f4\u017eu by\u0165 skombinovan\u00e9 do jedn\u00e9ho JavaScript s\u00faboru.      <\/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 5.0.4 - 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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