{"id":102260,"date":"2021-11-10T15:36:45","date_gmt":"2021-11-10T13:36:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-javascript-platformy-deno-1-16"},"modified":"2021-11-10T15:36:45","modified_gmt":"2021-11-10T13:36:45","slug":"vypusk-javascript-platformy-deno-1-16","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-javascript-platformy-deno-1-16","title":{"rendered":"Vyd\u00e1n\u00ed JavaScriptov\u00e9 platformy Deno 1.16","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byl vyd\u00e1n JavaScriptov\u00fd r\u00e1mec Deno 1.16, ur\u010den\u00fd pro samostatn\u00e9 prov\u00e1d\u011bn\u00ed (bez pou\u017eit\u00ed prohl\u00ed\u017ee\u010de) aplikac\u00ed napsan\u00fdch v jazyc\u00edch JavaScript a TypeScript. Projekt je vyv\u00edjen autorem Node.js Ryanem Dahlem. K\u00f3d r\u00e1mce je naps\u00e1n v programovac\u00edm jazyce Rust a je distribuov\u00e1n pod licenc\u00ed MIT. Hotov\u00e9 sestaven\u00ed je p\u0159ipraveno pro Linux, Windows a macOS.    <\/p>\n<p>Projekt je podobn\u00fd platform\u011b Node.js a tak\u00e9 vyu\u017e\u00edv\u00e1 JavaScriptov\u00fd engine V8, nicm\u00e9n\u011b podle autora Node.js napravuje n\u011bkter\u00e9 architektonick\u00e9 chyby sv\u00e9ho p\u0159edch\u016fdce a odli\u0161uje se n\u00e1sleduj\u00edc\u00edmi prvky:  <\/p>\n<ul>\n<li class=\"l\"> Pou\u017eit\u00ed Rust jako hlavn\u00edho jazyka, co\u017e podle v\u00fdvoj\u00e1\u0159\u016f sni\u017euje riziko vzniku zranitelnost\u00ed spojen\u00fdch s n\u00edzko\u00farov\u0148ov\u00fdm zach\u00e1zen\u00edm s pam\u011bt\u00ed (p\u0159ete\u010den\u00ed bufferu, use-after-free atd.);\n<li class=\"l\"> Deno nepou\u017e\u00edv\u00e1 spr\u00e1vce bal\u00ed\u010dk\u016f npm a package.json, nab\u00edzej\u00edc\u00ed u\u017eivateli instalaci modul\u016f pomoc\u00ed URL nebo cesty k modulu pro instalaci. P\u0159esto projekt nab\u00edz\u00ed n\u011bkolik utilit pro usnadn\u011bn\u00ed pr\u00e1ce s extern\u00edmi moduly;\n<li class=\"l\"> Aplikace se spou\u0161t\u011bj\u00ed izolovan\u011b v p\u00edskovi\u0161t\u00edch a nemaj\u00ed p\u0159\u00edstup k s\u00edti, prom\u011bnn\u00fdm prost\u0159ed\u00ed a souborov\u00e9mu syst\u00e9mu bez explicitn\u011b ud\u011blen\u00fdch opr\u00e1vn\u011bn\u00ed;\n<li class=\"l\"> Architektura navrhuje mo\u017enost vytv\u00e1\u0159en\u00ed univerz\u00e1ln\u00edch webov\u00fdch aplikac\u00ed, kter\u00e9 mohou pracovat jak v syst\u00e9mu Deno, tak v b\u011b\u017en\u00e9m prohl\u00ed\u017ee\u010di;\n<li class=\"l\"> Pou\u017eit\u00ed \u201eES Modules\u201c a absence podpory require();\n<li class=\"l\"> Jak\u00e9koli nezpracovan\u00e9 chyby program\u00e1tora ve webov\u00e9 aplikaci vedou k jej\u00edmu nucen\u00e9mu ukon\u010den\u00ed;\n<li class=\"l\"> Podpora TypeScript krom\u011b JavaScriptu;\n<li class=\"l\"> Pln\u00e1 velikost p\u0159ipraven\u00e9 platformy \u2014 84 MB (v zip archivu \u2014 31 MB) ve form\u011b jednoho spustiteln\u00e9ho souboru;\n<li class=\"l\"> Sou\u010d\u00e1st\u00ed je syst\u00e9m pro \u0159e\u0161en\u00ed z\u00e1vislost\u00ed a form\u00e1tov\u00e1n\u00ed k\u00f3du;\n<li class=\"l\"> Zam\u011b\u0159it se na vysoce v\u00fdkonn\u00e9 aplikace.  <\/ul>\n<p>Dino zpracov\u00e1v\u00e1 po\u017eadavky v neblokuj\u00edc\u00edm re\u017eimu s vyu\u017eit\u00edm platformy Tokio, ur\u010den\u00e9 pro vytv\u00e1\u0159en\u00ed vysoce v\u00fdkonn\u00fdch aplikac\u00ed na z\u00e1klad\u011b ud\u00e1lostmi \u0159\u00edzen\u00e9 (event-driven) architektury. Zaj\u00edmav\u00e9 je, \u017ee vestav\u011bn\u00fd HTTP server Deno je implementov\u00e1n na TypeScriptu na z\u00e1klad\u011b nativn\u00edch TCP socket\u016f, co\u017e pozitivn\u011b ovliv\u0148uje v\u00fdkon s\u00ed\u0165ov\u00fdch operac\u00ed.    <\/p>\n<p>Ve nov\u00e9 verzi jsou uvedeny:  <\/p>\n<ul>\n<li class=\"l\"> Optimalizace v\u00fdkonu (4 opravy);\n<li class=\"l\"> Oprava v\u00edce ne\u017e 15 chyb, zejm\u00e9na nyn\u00ed klient TLS podporuje HTTP\/2, podpora pro k\u00f3dov\u00e1n\u00ed zahrnuje dal\u0161\u00ed k\u00f3dovac\u00ed zna\u010dky atd.;\n<li class=\"l\"> V\u00edce ne\u017e dv\u011b des\u00edtky novinek, mezi n\u011b\u017e pat\u0159\u00ed stabilizace d\u0159\u00edve testovan\u00fdch subsyst\u00e9m\u016f Deno.startTls a Deno.TestDefinition.permissions, aktualizace JavaScriptov\u00e9ho enginu V8 na verzi 9.7 a podpora transformac\u00ed React 17 JSX.  <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56129\">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 JavaScript-\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Deno 1.16, \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 (\u0431\u0435\u0437 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430) \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u044f\u0437\u044b\u043a\u0430\u0445 JavaScript \u0438 TypeScript. \u041f\u0440\u043e\u0435\u043a\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0430\u0432\u0442\u043e\u0440\u043e\u043c Node.js \u0420\u0430\u0439\u0430\u043d\u043e\u043c \u0414\u0430\u043b\u0435\u043c (Ryan Dahl). \u041a\u043e\u0434 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f Rust \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u0413\u043e\u0442\u043e\u0432\u044b\u0435 \u0441\u0431\u043e\u0440\u043a\u0438 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u0434\u043b\u044f Linux, Windows \u0438 macOS. \u041f\u0440\u043e\u0435\u043a\u0442 \u0441\u0445\u043e\u0436 \u0441 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u043e\u0439 Node.js \u0438, \u043f\u043e\u0434\u043e\u0431\u043d\u043e \u0435\u043c\u0443, [&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-102260","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 JavaScript-\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Deno 1.16, \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 (\u0431\u0435\u0437 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