{"id":154084,"date":"2026-01-18T17:11:55","date_gmt":"2026-01-18T15:11:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-javascript-biblioteki-jquery-4-0-2"},"modified":"2026-01-18T17:11:55","modified_gmt":"2026-01-18T15:11:55","slug":"vypusk-javascript-biblioteki-jquery-4-0-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/vypusk-javascript-biblioteki-jquery-4-0-2","title":{"rendered":"Wydanie biblioteki JavaScript jQuery 4.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po prawie 10 latach od publikacji wersji 3.0 i 20 lat po za\u0142o\u017ceniu projektu, wydano bibliotek\u0119 JavaScript jQuery 4.0, kt\u00f3ra wed\u0142ug danych organizacji W3Techs jest u\u017cywana w 70,9% z 10 milion\u00f3w najcz\u0119\u015bciej odwiedzanych stron w sieci. Kod jQuery jest dost\u0119pny na licencji MIT.       <\/p>\n<p> Wydanie jQuery 4.0 zawiera zmiany, kt\u00f3re \u0142ami\u0105 zgodno\u015b\u0107 wsteczn\u0105, ale wed\u0142ug zapewnie\u0144 programist\u00f3w wi\u0119kszo\u015b\u0107 u\u017cytkownik\u00f3w b\u0119dzie mog\u0142a bez problemu przej\u015b\u0107 na now\u0105 wersj\u0119 z minimalnymi zmianami w swoim kodzie. Aby upro\u015bci\u0107 migracj\u0119, mo\u017cna wykorzysta\u0107 specjalny plugin. Naruszenia zgodno\u015bci wstecznej zwi\u0105zane s\u0105 z usuni\u0119ciem przestarza\u0142ego kodu, usuni\u0119ciem niekt\u00f3rych wewn\u0119trznych, niedokumentowanych parametr\u00f3w, zaprzestaniem wsparcia dla pewnych nadmiernie skomplikowanych zachowa\u0144 i zako\u0144czeniem wsparcia dla API, kt\u00f3re wcze\u015bniej zosta\u0142y oznaczone jako przestarza\u0142e. Usuni\u0119cie przestarza\u0142ych API i przegl\u0105darek pozwoli\u0142o na zmniejszenie rozmiaru archiwum gzip z bibliotek\u0105 o 3 KB (wersja slim zajmuje teraz 19,5 KB, a pe\u0142na \u2014 27,5 KB).       <\/p>\n<p>W\u015br\u00f3d zmian:  <\/p>\n<ul>\n<li class=\"l\"> Wsparcie dla przegl\u0105darki IE 10 i starszych wersji zosta\u0142o zako\u0144czone (wsparcie dla IE 11 pozostaje, ale zostanie usuni\u0119te w Query 5.0), a tak\u017ce dla innych starych przegl\u0105darek, takich jak Edge Legacy, Android Browser i Firefox do wersji 115.\n<li class=\"l\"> Wbudowane wsparcie dla API Trusted Types, rozwijanego w celu ochrony przed manipulacjami DOM, prowadz\u0105cymi do skryptowania mi\u0119dzy witrynami (DOM XSS), na przyk\u0142ad przy nieprawid\u0142owym przetwarzaniu danych od u\u017cytkownika w blokach eval() lub wstawieniach \u201e.innerHTML\u201d, co mo\u017ce prowadzi\u0107 do wykonania kodu JavaScript w kontek\u015bcie okre\u015blonej strony. Do metod jQuery teraz mo\u017cna przekazywa\u0107 kod HTML w formie obiekt\u00f3w TrustedHTML.\n<li class=\"l\"> Kod jQuery zosta\u0142 dostosowany do u\u017cycia modu\u0142\u00f3w JavaScript ESM (ECMAScript Module) i mo\u017ce by\u0107 dostarczany oraz importowany jako modu\u0142.\n<li class=\"l\"> Usuni\u0119to funkcje, kt\u00f3re wcze\u015bniej by\u0142y oznaczane jako przestarza\u0142e: jQuery.isArray, jQuery.parseJSON, jQuery.trim, jQuery.type, jQuery.now, jQuery.isNumeric, jQuery.isFunction, jQuery.isWindow, jQuery.camelCase, jQuery.nodeName, jQuery.cssNumber, jQuery.cssProps i jQuery.fx.interval. Zamiast tych funkcji zaleca si\u0119 u\u017cywanie standardowych funkcji JavaScript: Array.isArray(), JSON.parse(), String.prototype.trim() oraz Date.now()\n<li class=\"l\"> Usuni\u0119to niedokumentowane wewn\u0119trzne metody obiektu Array \u2014 push, sort i splice.\n<li class=\"l\"> Kolejno\u015b\u0107 przetwarzania zdarze\u0144 zmiany fokusu dostosowano do specyfikacji W3C \u2014 blur, focusout, focus i focusin.\n<li class=\"l\"> Rozmiar uproszczonej wersji (slim), nie zawieraj\u0105cej modu\u0142\u00f3w ajax i effects, zosta\u0142 zmniejszony do 19,5 kB dzi\u0119ki zaprzestaniu dostarczania obiekt\u00f3w Deferred (zaleca si\u0119 u\u017cywanie standardowych Promises) oraz Callbacks.  <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64637\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 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[&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-154084","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=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u0447\u0442\u0438 10 \u043b\u0435\u0442 \u0441 \u043c\u043e\u043c\u0435\u043d\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438 \u0432\u0435\u0442\u043a\u0438 3.0 \u0438 \u0441\u043f\u0443\u0441\u0442\u044f 20 \u043b\u0435\u0442 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f 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