{"id":39242,"date":"2019-10-31T22:28:38","date_gmt":"2019-10-31T19:28:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-servernoj-javascript-platformy-node-js-13-0\/"},"modified":"2019-10-31T22:28:38","modified_gmt":"2019-10-31T19:28:38","slug":"vypusk-servernoj-javascript-platformy-node-js-13-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/vypusk-servernoj-javascript-platformy-node-js-13-0","title":{"rendered":"Wydanie serwerowej platformy JavaScript Node.js 13.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/nodejs.org\/en\/blog\/release\/v13.0.0\/\">Dost\u0119pny<\/a><\/noindex> wydanie <noindex><a rel=\"nofollow\" href=\"https:\/\/nodejs.org\">Node.js 13.0<\/a><\/noindex>, platformy do uruchamiania aplikacji sieciowych w j\u0119zyku JavaScript. Jednocze\u015bnie zako\u0144czono stabilizacj\u0119 poprzedniej ga\u0142\u0119zi Node.js 12.x, kt\u00f3ra zosta\u0142a przeniesiona do kategorii wyda\u0144 z d\u0142ugoterminowym wsparciem, aktualizacje dla kt\u00f3rej b\u0119d\u0105 wydawane przez 4 lata. Wsparcie dla poprzedniej ga\u0142\u0119zi LTS Node.js 10.0 b\u0119dzie trwa\u0142o do kwietnia 2021 roku, a dla ga\u0142\u0119zi LTS 8.0 do stycznia 2020 roku.<\/p>\n<p>Podstawowe <noindex><a rel=\"nofollow\" href=\"https:\/\/medium.com\/@nodejs\/node-js-12-to-lts-and-node-js-13-is-here-e28d6a4a2bd\">ulepszenia<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Silnik V8 zaktualizowano do wersji <noindex><a rel=\"nofollow\" href=\"https:\/\/v8.dev\/\">7.8<\/a><\/noindex>, w kt\u00f3rej zastosowano nowe metody optymalizacji wydajno\u015bci, poprawiono destrukturyzacj\u0119 obiekt\u00f3w, zmniejszono zu\u017cycie pami\u0119ci i skr\u00f3cono czas przygotowania do wykonania WebAssembly;\n<li class=\"l\"> Domy\u015blnie w\u0142\u0105czono pe\u0142ne wsparcie internacjonalizacji i Unicode na bazie bibliotek <noindex><a rel=\"nofollow\" href=\"http:\/\/site.icu-project.org\/\">ICU<\/a><\/noindex> (International Components for Unicode), umo\u017cliwiaj\u0105ca programistom pisanie kodu, <noindex><a rel=\"nofollow\" href=\"https:\/\/nodejs.org\/api\/intl.html#intl_providing_icu_data_at_runtime\">kt\u00f3ry wspiera<\/a><\/noindex> prac\u0119 z r\u00f3\u017cnymi j\u0119zykami i lokalizacjami. Modu\u0142 full-icu jest teraz domy\u015blnie zainstalowany;\n<li class=\"l\"> Stabilizowano API <noindex><a rel=\"nofollow\" href=\"https:\/\/nodejs.org\/api\/worker_threads.html\">Workers Threads<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/medium.com\/@Trott\/using-worker-threads-in-node-js-80494136dbb6\">umo\u017cliwiaj\u0105ce<\/a><\/noindex> tworzenie wielow\u0105tkowych cykli przetwarzania zdarze\u0144 (event loop). Implementacja opiera si\u0119 na module worker_threads, kt\u00f3ry umo\u017cliwia uruchamianie kodu JavaScript w kilku r\u00f3wnoleg\u0142ych w\u0105tkach. Stabilne wsparcie API Workers Threads zosta\u0142o tak\u017ce przeniesione do ga\u0142\u0119zi LTS Node.js 12.x;\n<li class=\"l\"> Podwy\u017cszono wymagania dotycz\u0105ce platform. Do kompilacji potrzebna jest teraz <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/nodejs\/node\/blob\/master\/BUILDING.md#platform-list\">wymagana<\/a><\/noindex> co najmniej macOS 10.11 (wymagane Xcode 10), AIX 7.2, Ubuntu 16.04, Debian 9, EL 7, Alpine 3.8, Windows 7\/2008;\n<li class=\"l\"> Poprawiono wsparcie dla Pythona 3. W przypadku zainstalowania zar\u00f3wno Pythona 2, jak i Pythona 3, wci\u0105\u017c u\u017cywany jest Python 2, ale dodano mo\u017cliwo\u015b\u0107 kompilacji przy zainstalowanym tylko Pythonie 3;\n<li class=\"l\"> Usuni\u0119to star\u0105 implementacj\u0119 parsera HTTP (&#171;&#8212;http-parser=legacy&#187;). Usuni\u0119to lub przeniesiono do kategorii przestarza\u0142ych wywo\u0142ania i w\u0142a\u015bciwo\u015bci FSWatcher.prototype.start(), ChildProcess._channel, metoda open() w obiektach ReadStream i WriteStream, request.connection, response.connection, module.createRequireFromPath();\n<li class=\"l\"> Nast\u0119pnie <noindex><a rel=\"nofollow\" href=\"https:\/\/nodejs.org\/en\/blog\/release\/v13.0.1\/\">zosta\u0142a wydana<\/a><\/noindex> aktualizacja 13.0.1, w kt\u00f3rej usuni\u0119to kilka b\u0142\u0119d\u00f3w. W tym rozwi\u0105zano problem z wy\u015bwietlaniem w npm 6.12.0 ostrze\u017cenia dotycz\u0105cego u\u017cywania nieobs\u0142ugiwanej wersji.\n<\/ul>\n<p>Przypominamy, \u017ce platforma Node.js mo\u017ce by\u0107 u\u017cywana zar\u00f3wno do serwerowego wsparcia dzia\u0142ania aplikacji internetowych, jak i do tworzenia standardowych program\u00f3w sieciowych dla klient\u00f3w i serwer\u00f3w. W celu rozszerzenia funkcjonalno\u015bci aplikacji dla Node.js przygotowano du\u017c\u0105 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.npmjs.com\/\">kolekcj\u0119 modu\u0142\u00f3w<\/a><\/noindex>, w kt\u00f3rej mo\u017cna znale\u017a\u0107 modu\u0142y z implementacj\u0105 serwer\u00f3w i klient\u00f3w HTTP, SMTP, XMPP, DNS, FTP, IMAP, POP3, modu\u0142y do integracji z r\u00f3\u017cnymi frameworkami webowymi, obs\u0142ugiwacze WebSocket i Ajax, konektory do baz danych (MySQL, PostgreSQL, SQLite, MongoDB), silniki szablon\u00f3w, silniki CSS, implementacje algorytm\u00f3w kryptograficznych i system\u00f3w autoryzacji (OAuth), parsery XML.<\/p>\n<p> Aby zapewni\u0107 obs\u0142ug\u0119 du\u017cej liczby r\u00f3wnoleg\u0142ych zapyta\u0144, Node.js wykorzystuje asynchroniczny model uruchamiania kodu, oparty na obs\u0142udze zdarze\u0144 w trybie nieblokuj\u0105cym oraz definiowaniu funkcji callback. Metody multiplexowania po\u0142\u0105cze\u0144 obejmuj\u0105 takie mechanizmy jak epoll, kqueue, \/dev\/poll i select. Do multiplexowania po\u0142\u0105cze\u0144 u\u017cywana jest biblioteka <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/libuv\/libuv\">libuv<\/a><\/noindex>, kt\u00f3ra jest nadbudow\u0105 nad <noindex><a rel=\"nofollow\" href=\"http:\/\/software.schmorp.de\/pkg\/libev.html\">libev<\/a><\/noindex> w systemach Unix i nad IOCP w Windows. Do tworzenia puli w\u0105tk\u00f3w (thread pool) wykorzystywana jest biblioteka <noindex><a rel=\"nofollow\" href=\"http:\/\/software.schmorp.de\/pkg\/libeio.html\">libeio<\/a><\/noindex>, do wykonywania zapyta\u0144 DNS w trybie nieblokuj\u0105cym zintegrowano <noindex><a rel=\"nofollow\" href=\"http:\/\/c-ares.haxx.se\/\">c-ares<\/a><\/noindex>. Wszystkie wywo\u0142ania systemowe, kt\u00f3re mog\u0105 wywo\u0142ywa\u0107 blokowanie, s\u0105 wykonywane wewn\u0105trz puli w\u0105tk\u00f3w i nast\u0119pnie, podobnie jak obs\u0142uga sygna\u0142\u00f3w, przekazuj\u0105 wynik swojej pracy z powrotem przez nieoznaczon\u0105 rur\u0119 (pipe). Wykonywanie kodu JavaScript zapewnione jest przez wykorzystanie zaprojektowanego przez Google silnika <noindex><a rel=\"nofollow\" href=\"http:\/\/code.google.com\/p\/v8\/\">V8<\/a><\/noindex> (dodatkowo Microsoft rozwija wersj\u0119 Node.js z silnikiem Chakra-Core).  <\/p>\n<p>Zasadniczo Node.js przypomina frameworki <noindex><a rel=\"nofollow\" href=\"http:\/\/search.cpan.org\/dist\/AnyEvent\/\">Perl AnyEvent<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/eventmachine\/eventmachine\">Ruby Event Machine<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/twistedmatrix.com\/\">Python Twisted<\/a><\/noindex> i <noindex><a rel=\"nofollow\" href=\"http:\/\/wiki.tcl.tk\/1527\">wdro\u017cenie<\/a><\/noindex> zdarze\u0144 w Tcl, ale p\u0119tla przetwarzania zdarze\u0144 (event loop) w Node.js jest ukryta przed programist\u0105 i przypomina przetwarzanie zdarze\u0144 w aplikacji webowej dzia\u0142aj\u0105cej w przegl\u0105darce. Podczas pisania aplikacji dla node.js nale\u017cy wzi\u0105\u0107 pod uwag\u0119 specyfik\u0119 programowania opartego na zdarzeniach, na przyk\u0142ad, zamiast wykonania &#171;var result = db.query(&#171;select..&#187;);&#187; z oczekiwaniem na zako\u0144czenie pracy i p\u00f3\u017aniejszym przetwarzaniem wynik\u00f3w, w Node.js u\u017cywa zasady asynchronicznego wykonania, tj. kod przekszta\u0142ca si\u0119 w &#171;db.query(&#171;select..&#187;, function (result) {przetwarzanie wyniku});&#187;, przy czym kontrola natychmiast przejdzie do dalszego kodu, a wynik zapytania zostanie przetworzony w miar\u0119 nap\u0142ywu danych. <\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>\u0179r\u00f3d\u0142o: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51741\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Node.js 13.0, \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 JavaScript. \u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0430 \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043f\u0440\u043e\u0448\u043b\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 Node.js 12.x, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0435\u043d\u0430 \u0432 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u044e \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u0432 \u0441 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0441\u0440\u043e\u043a\u043e\u043c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438, \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u044e\u0442\u0441\u044f \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 4 \u043b\u0435\u0442. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u0440\u043e\u0448\u043b\u043e\u0439 LTS-\u0432\u0435\u0442\u043a\u0438 Node.js 10.0 \u043f\u0440\u043e\u0434\u043b\u0438\u0442\u0441\u044f \u0434\u043e \u0430\u043f\u0440\u0435\u043b\u044f 2021 \u0433\u043e\u0434\u0430, \u0430 \u043f\u043e\u0437\u0430\u043f\u0440\u043e\u0448\u043b\u043e\u0439 LTS-\u0432\u0435\u0442\u043a\u0438 8.0 \u0434\u043e \u044f\u043d\u0432\u0430\u0440\u044f 2020 \u0433\u043e\u0434\u0430. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 [&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-39242","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Node.js 13.0, \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f.\" \/>\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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