{"id":69424,"date":"2020-02-19T08:45:31","date_gmt":"2020-02-19T05:45:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/proekt-deno-razvivaet-zashhishhyonnuyu-javascript-platformu-pohozhuyu-na-node-js"},"modified":"2020-03-03T16:11:16","modified_gmt":"2020-03-03T13:11:16","slug":"proekt-deno-razvivaet-zashhishhyonnuyu-javascript-platformu-pohozhuyu-na-node-js","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/proekt-deno-razvivaet-zashhishhyonnuyu-javascript-platformu-pohozhuyu-na-node-js","title":{"rendered":"\u041f\u0440\u043e\u0435\u043a\u0442 Deno \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u0443\u044e JavaScript-\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0443, \u043f\u043e\u0445\u043e\u0436\u0443\u044e \u043d\u0430 Node.js","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/denoland\/deno\/releases\">Dostupno<\/a><\/noindex> izdavanje projekta <noindex><a rel=\"nofollow\" href=\"https:\/\/deno.land\/\">Deno 0.33<\/a><\/noindex>, koji nudi platformu sli\u010dnu Node.js za izolirano izvr\u0161avanje aplikacija napisano u JavaScript i TypeScript-u, koja se mo\u017ee koristiti za pokretanje aplikacija bez oslanjanja na preglednik, na primjer, za izradu poslu\u017eitelja. U Deno-u se koristi JavaScript motor <noindex><a rel=\"nofollow\" href=\"https:\/\/v8.dev\/\">V8<\/a><\/noindex>, koji se tako\u0111er koristi u Node.js-u i preglednicima temeljenim na projektu Chromium. Izvorni kod projekta <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/denoland\/deno\">distribuira se<\/a><\/noindex> pod MIT licencom. Projekt razvija Ryan Dahl (<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Ryan_Dahl\">Ryan Dahl<\/a><\/noindex>), kreator JavaScript platforme Node.js. <\/p>\n<p>Jedan od glavnih ciljeva stvaranja novog runtime-a za JavaScript je pru\u017eanje sigurnijeg okru\u017eenja. Radi pove\u0107anja sigurnosti, omota\u010d oko V8 motora je napisan na jeziku Rust, \u0161to omogu\u0107ava izbjegavanje mnogih ranjivosti koje se pojavljuju zbog niskonivojskog rada s memorijom, poput pristupanja memorijskom prostoru nakon \u0161to je oslobo\u0111en, dereferenciranja nultih pokaziva\u010da i prekora\u010denja granica bafera. Za obradu zahtjeva koristi se platforma <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tokio-rs\/tokio\">Tokio<\/a><\/noindex>, tako\u0111er napisana na jeziku Rust. Tokio omogu\u0107ava izradu visoko performansnih aplikacija temeljenih na arhitekturi orijentiranoj na doga\u0111aje (Event-driven), koje podr\u017eavaju vi\u0161edretvenost i obradu mre\u017enih zahtjeva u asinkronom re\u017eimu.<\/p>\n<p>Glavne <noindex><a rel=\"nofollow\" href=\"https:\/\/deno.land\/std\/manual.md\">karakteristike<\/a><\/noindex> Deno:<\/p>\n<ul>\n<li class=\"l\"> Usmjerenost na sigurnost u zadanoj konfiguraciji. Pristupi datotekama, mre\u017ene mogu\u0107nosti i pristup varijablama okru\u017eenja su prema zadanim postavkama blokirani i zahtijevaju eksplicitno omogu\u0107avanje;\n<li class=\"l\"> Ugra\u0111ena podr\u0161ka za TypeScript uz JavaScript;\n<li class=\"l\"> Runtime dolazi u obliku jedne samostalne izvr\u0161ne datoteke (&#171;deno&#187;). Za pokretanje aplikacija pomo\u0107u Deno-a, dovoljno je <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/denoland\/deno\/releases\">preuzeti<\/a><\/noindex> za svoju platformu jedan izvr\u0161ni datoteka, veli\u010dine oko 10 MB, bez vanjskih ovisnosti i ne zahtijeva posebnu instalaciju u sustav;\n<li class=\"l\"> Prilikom pokretanja programa, kao i za u\u010ditavanje modula, mo\u017ee se koristiti adresa putem URL-a. Na primer, za pokretanje programa welcome.js, mo\u017ee se koristiti komanda &#171;deno https:\/\/deno.land\/std\/examples\/welcome.js&#187;. Kod sa spolja\u0161njih resursa se u\u010ditava i ke\u0161ira na lokalnom sistemu, ali se nikada automatski ne a\u017eurira (za a\u017euriranje je potrebno eksplicitno pokrenuti aplikaciju sa oznakom &#171;&#8212;reload&#187;);\n<li class=\"l\"> U\u010dinkovita obrada mre\u0161nih zahtjeva putem HTTP-a, platforma je osmi\u0161ljena za stvaranje visoko performantnih mre\u017enih aplikacija;\n<li class=\"l\"> Mogu\u0107nost izrade univerzalnih web aplikacija koje se mogu izvesti kako u Denu, tako i u obi\u010dnom web pregledniku;\n<li class=\"l\"> Pored runtime-a, platforma Deno tako\u0111e slu\u017ei kao menad\u017eer paketa i omogu\u0107ava pristup modulima putem URL-a unutar koda. Na primer, za u\u010ditavanje modula mo\u017ee se u kodu navesti &#171;import * as log from &#171;https:\/\/deno.land\/std\/log\/mod.ts&#187;. Datoteke u\u010ditane sa spolja\u0161njih servera putem URL-a se ke\u0161iraju. Veze sa verzijama modula se odre\u0111uju putem navo\u0111enja brojeva verzija unutar URL-a, na primer, &#171;https:\/\/unpkg.com\/liltest@0.0.5\/dist\/liltest.js&#187;;\n<li class=\"l\"> U sustav je integriran sustav za inspekciju ovisnosti (komanda &#171;deno info&#187;) i alat za formatiranje koda (deno fmt).\n<li class=\"l\"> Za programere aplikacija <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/denoland\/deno\/tree\/master\/std\">predlo\u017een<\/a><\/noindex> set standardnih modula koji su pro\u0161li dodatnu reviziju i provjeru kompatibilnosti;\n<li class=\"l\"> Sve skripte aplikacije mogu se spojiti u jednu JavaScript datoteku.\n<\/ul>\n<p> Razlike u odnosu na Node.js:<\/p>\n<ul>\n<li class=\"l\"> Deno ne koristi upravitelj paketa npm<br \/>\n i ne oslanja se na repozitorije, adrese modula odre\u0111uju se putem URL-a ili preko datote\u010dnih putanja, a moduli se mogu nalaziti na bilo kojoj stranici;<\/p>\n<li class=\"l\"> U Deno-u se ne koristi &#171;package.json&#187; za odre\u0111ivanje modula;\n<li class=\"l\"> Razlika u API-ju, sve asinkrone radnje u Denu vra\u0107aju promise;\n<li class=\"l\"> Deno zahtijeva eksplicitno definiranje svih potrebnih ovlasti za datoteke, mre\u017eu i varijable okru\u017eenja;\n<li class=\"l\"> Sve pogre\u0161ke bez handlera dovode do prekida izvr\u0161avanja aplikacije;\n<li class=\"l\"> U Deno-u se koristi sistem modula ECMAScript i ne podr\u017eava require().\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Izvor: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52387\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Deno 0.33, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e 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\u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0445 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435. \u0412 Deno \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f JavaScript-\u0434\u0432\u0438\u0436\u043e\u043a V8, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0432 Node.js \u0438 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430\u0445 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Chromium. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 [&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-69424","post","type-post","status-publish","format-standard","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=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Deno 0.33, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u0445\u043e\u0436\u0443\u044e \u043d\u0430.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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