{"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\/ro\/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\">Disponibil<\/a><\/noindex> versiunea proiectului <noindex><a rel=\"nofollow\" href=\"https:\/\/deno.land\/\">Deno 0.33<\/a><\/noindex>, oferind o platform\u0103 similar\u0103 cu Node.js pentru rularea izolat\u0103 a aplica\u021biilor scrise \u00een JavaScript \u0219i TypeScript, ceea ce poate fi utilizat pentru a rula aplica\u021bii f\u0103r\u0103 leg\u0103tur\u0103 cu un browser, de exemplu, pentru a crea manipulatoare care func\u021bioneaz\u0103 pe server. Deno folose\u0219te motorul JavaScript <noindex><a rel=\"nofollow\" href=\"https:\/\/v8.dev\/\">V8<\/a><\/noindex>, care este de asemenea utilizat \u00een Node.js \u0219i browserele bazate pe proiectul Chromium. Codul proiectului <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/denoland\/deno\">se r\u0103sp\u00e2nde\u0219te<\/a><\/noindex> este licen\u021biat sub MIT. Proiectul este dezvoltat de Ryan Dahl (<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Ryan_Dahl\">Ryan Dahl<\/a><\/noindex>), creatorul platformei JavaScript Node.js. <\/p>\n<p>Una dintre principalele obiective \u00een crearea unui nou runtime pentru JavaScript este oferirea unui mediu mai sigur. Pentru a cre\u0219te securitatea, \u00eenf\u0103\u0219urarea \u00een jurul motorului V8 este scris\u0103 \u00een limbajul Rust, ceea ce permite evitarea multor vulnerabilit\u0103\u021bi ap\u0103rute din cauza manipul\u0103rii de nivel sc\u0103zut a memoriei, cum ar fi accesarea zonei de memorie dup\u0103 eliberarea acesteia, dereferen\u021bierea pointerilor nuli \u0219i dep\u0103\u0219irea limitelor buffer-ului. Pentru a gestiona cererile \u00eentr-un mod non-blocant se folose\u0219te platforma <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tokio-rs\/tokio\">Tokio<\/a><\/noindex>, de asemenea, scris\u0103 \u00een limbajul Rust. Tokio permite crearea de aplica\u021bii de \u00eenalt\u0103 performan\u021b\u0103 bazate pe arhitectura orientat\u0103 pe evenimente (Event-driven), care suport\u0103 multi-threading \u0219i procesarea solicit\u0103rilor de re\u021bea \u00een mod asincron.<\/p>\n<p>Principalele <noindex><a rel=\"nofollow\" href=\"https:\/\/deno.land\/std\/manual.md\">grafica realizat\u0103 prin WebGL \u0219i<\/a><\/noindex> Deno:<\/p>\n<ul>\n<li class=\"l\"> Orientarea spre securitate \u00een configura\u021bia implicit\u0103. Accesul la fi\u0219iere, capacit\u0103\u021bile de re\u021bea \u0219i accesul la variabilele de mediu sunt blocate implicit \u0219i necesit\u0103 activare explicit\u0103;\n<li class=\"l\"> Suport \u00eencorporat pentru TypeScript, pe l\u00e2ng\u0103 JavaScript;\n<li class=\"l\"> Runtime-ul este livrat sub forma unui fi\u0219ier executabil autonom (&#171;deno&#187;). Pentru a rula aplica\u021bii cu Deno, este suficient <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/denoland\/deno\/releases\">desc\u0103rcat\u0103<\/a><\/noindex> pentru platforma sa un singur fi\u0219ier executabil, cu o dimensiune de aproximativ 10 MB, f\u0103r\u0103 dependen\u021be externe \u0219i care nu necesit\u0103 vreo instalare special\u0103 \u00een sistem;\n<li class=\"l\"> Atunci c\u00e2nd rula\u021bi programul sau pentru a \u00eenc\u0103rca module, pute\u021bi utiliza adresarea prin URL. De exemplu, pentru a rula programul welcome.js, pute\u021bi folosi comanda &#171;deno https:\/\/deno.land\/std\/examples\/welcome.js&#187;. Codul de pe surse externe este desc\u0103rcat \u0219i stocat \u00een cache pe sistemul local, dar nu se actualizeaz\u0103 automat (pentru actualizare este necesar s\u0103 rula\u021bi explicit aplica\u021bia cu un flag &#171;&#8212;reload&#187;);\n<li class=\"l\"> Procesarea eficient\u0103 a cererilor de re\u021bea HTTP, platforma fiind conceput\u0103 pentru construirea de aplica\u021bii de re\u021bea de \u00eenalt\u0103 performan\u021b\u0103;\n<li class=\"l\"> Posibilitatea de a crea aplica\u021bii web universale care pot rula at\u00e2t \u00een Deno, c\u00e2t \u0219i \u00een browsere web obi\u0219nuite;\n<li class=\"l\"> \u00cen plus fa\u021b\u0103 de runtime, platforma Deno \u00eendepline\u0219te \u0219i rolul unui manager de pachete \u0219i permite accesarea modulelor prin URL \u00een interiorul codului. De exemplu, pentru a \u00eenc\u0103rca un modul, pute\u021bi specifica \u00een cod &#171;import * as log from &#171;https:\/\/deno.land\/std\/log\/mod.ts&#187;. Fi\u0219ierele desc\u0103rcate de pe servere externe prin URL sunt stocate \u00een cache. Leg\u0103turile la versiunile modulelor sunt definite prin specificarea numerelor versiunilor \u00een interiorul URL-ului, de exemplu, &#171;https:\/\/unpkg.com\/liltest@0.0.5\/dist\/liltest.js&#187;;\n<li class=\"l\"> Sistemul include un sistem de inspec\u021bie a dependen\u021belor (comanda &#171;deno info&#187;) \u0219i o utilitate pentru formatarea codului (deno fmt).\n<li class=\"l\"> Pentru dezvoltatorii de aplica\u021bii <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/denoland\/deno\/tree\/master\/std\">sub licen\u021ba MIT. Instrumentul utilizeaz\u0103 metode de \u00eenv\u0103\u021bare automat\u0103, \u00eempreun\u0103 cu analiza static\u0103 \u0219i dinamic\u0103 a codului JavaScript. Se afirm\u0103 c\u0103 utilizarea \u00eenv\u0103\u021b\u0103rii automate a permis \u00eembun\u0103t\u0103\u021birea semnificativ\u0103 a preciziei \u00een identificarea codului pentru identificarea ascuns\u0103 \u0219i a identificat cu 26% mai multe scripturi problematice<\/a><\/noindex> un set de module standard care au trecut printr-o auditare suplimentar\u0103 \u0219i verificare a compatibilit\u0103\u021bii;\n<li class=\"l\"> Toate scripturile aplica\u021biei pot fi combinate \u00eentr-un singur fi\u0219ier JavaScript.\n<\/ul>\n<p> Diferitele de Node.js:<\/p>\n<ul>\n<li class=\"l\"> Deno nu folose\u0219te managerul de pachete npm<br \/>\n \u0219i nu se leag\u0103 de depozite; adresarea modulelor se realizeaz\u0103 prin URL sau pe cale de fi\u0219ier, iar modulele \u00een sine pot fi g\u0103zduite pe orice site;<\/p>\n<li class=\"l\"> \u00cen Deno nu se utilizeaz\u0103 &#171;package.json&#187; pentru a defini module;\n<li class=\"l\"> Diferen\u021ba API-ului, toate ac\u021biunile asincrone \u00een Deno returneaz\u0103 promisiuni;\n<li class=\"l\"> Deno necesit\u0103 definirea explicit\u0103 a tuturor permisiunilor necesare pentru fi\u0219iere, re\u021bea \u0219i variabile de mediu;\n<li class=\"l\"> Toate erorile care nu au gestionari determin\u0103 terminarea execu\u021biei aplica\u021biei;\n<li class=\"l\"> \u00cen Deno se folose\u0219te sistemul de module ECMAScript \u0219i nu se suport\u0103 require().\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Sursa: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52387\">opennet.ro<\/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 \u043f\u043e\u0445\u043e\u0436\u0443\u044e \u043d\u0430 Node.js \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0443 \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 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 JavaScript \u0438 TypeScript, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0430 \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0431\u0435\u0437 \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0438 \u043a \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0443, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \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 5.0.2.1 - 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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