{"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\/pt\/blog\/news\/vypusk-javascript-platformy-deno-1-16","title":{"rendered":"Lan\u00e7amento da plataforma JavaScript Deno 1.16","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foi lan\u00e7ado o Deno 1.16, uma plataforma JavaScript destinada \u00e0 execu\u00e7\u00e3o isolada (sem o uso de um navegador) de aplicativos escritos em JavaScript e TypeScript. O projeto est\u00e1 sendo desenvolvido por Ryan Dahl, o autor do Node.js. O c\u00f3digo da plataforma \u00e9 escrito em Rust e \u00e9 distribu\u00eddo sob a licen\u00e7a MIT. Compila\u00e7\u00f5es prontas est\u00e3o dispon\u00edveis para Linux, Windows e macOS.    <\/p>\n<p>O projeto \u00e9 semelhante \u00e0 plataforma Node.js e, assim como ela, utiliza o motor JavaScript V8. No entanto, segundo o autor do Node.js, corrige uma s\u00e9rie de erros de arquitetura de seu predecessor e se diferencia dele pelos seguintes aspectos:  <\/p>\n<ul>\n<li class=\"l\"> O uso do Rust como linguagem principal, que, segundo os desenvolvedores, reduz o risco de vulnerabilidades relacionadas ao trabalho de baixo n\u00edvel com a mem\u00f3ria (como estouros de buffer, use-after-free etc.);\n<li class=\"l\"> O Deno n\u00e3o usa o gerenciador de pacotes npm e o package.json, oferecendo ao usu\u00e1rio a instala\u00e7\u00e3o de m\u00f3dulos atrav\u00e9s da indica\u00e7\u00e3o de uma URL ou caminho para o m\u00f3dulo a ser instalado. No entanto, o projeto oferece v\u00e1rias utilidades para facilitar o trabalho com m\u00f3dulos de terceiros;\n<li class=\"l\"> Aplicativos s\u00e3o executados isoladamente em sandboxes e n\u00e3o t\u00eam acesso \u00e0 rede, vari\u00e1veis de ambiente e sistema de arquivos, sem permiss\u00f5es explicitamente concedidas;\n<li class=\"l\"> A arquitetura permite a cria\u00e7\u00e3o de aplicativos web universais que podem funcionar tanto no sistema Deno quanto em um navegador convencional;\n<li class=\"l\"> Uso de &#171;ES Modules&#187; e a falta de suporte para require();\n<li class=\"l\"> Qualquer erro n\u00e3o tratado pelo programador em um aplicativo web resulta em seu encerramento for\u00e7ado;\n<li class=\"l\"> Suporte a TypeScript al\u00e9m do JavaScript;\n<li class=\"l\"> Tamanho total da plataforma pronta para uso &#8212; 84 MB (no arquivo zip &#8212; 31 MB) em um \u00fanico arquivo execut\u00e1vel;\n<li class=\"l\"> Inclui um sistema de resolu\u00e7\u00e3o de depend\u00eancias e formata\u00e7\u00e3o de c\u00f3digo;\n<li class=\"l\"> Foco em aplicativos de alto desempenho.  <\/ul>\n<p>Deno processa solicita\u00e7\u00f5es em modo n\u00e3o bloqueante usando a plataforma Tokio, projetada para criar aplicativos de alto desempenho com base em uma arquitetura orientada a eventos. \u00c9 interessante notar que o servidor HTTP embutido do Deno \u00e9 implementado em TypeScript sobre soquetes TCP nativos, o que impacta positivamente a performance das opera\u00e7\u00f5es de rede.    <\/p>\n<p>Na nova vers\u00e3o, observam-se:  <\/p>\n<ul>\n<li class=\"l\"> Otimiza\u00e7\u00e3o de desempenho (4 patches);\n<li class=\"l\"> Corre\u00e7\u00e3o de mais de 15 erros, incluindo agora o cliente TLS suportando HTTP\/2, a subsistema de codifica\u00e7\u00e3o suportando r\u00f3tulos de codifica\u00e7\u00e3o adicionais, etc.;\n<li class=\"l\"> Mais de duas dezenas de inova\u00e7\u00f5es, das quais se destaca a estabiliza\u00e7\u00e3o de subsistemas anteriormente testados Deno.startTls e Deno.TestDefinition.permissions, a atualiza\u00e7\u00e3o do motor JS V8 para a vers\u00e3o 9.7 e o suporte a transforma\u00e7\u00f5es React 17 JSX.  <\/ul>\n<p>Fonte: <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, 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