{"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\/sk\/blog\/news\/vypusk-javascript-biblioteki-jquery-4-0-2","title":{"rendered":"Vydanie kni\u017enice JavaScript jQuery 4.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po takmer 10 rokoch od publikovania verzie 3.0 a 20 rokov po zalo\u017een\u00ed projektu bol vydan\u00fd JavaScriptov\u00fd kni\u017enica jQuery 4.0, ktor\u00e1 je pod\u013ea \u00fadajov organiz\u00e1cie W3Techs pou\u017e\u00edvan\u00e1 na 70,9 % zo 10 mili\u00f3nov najnav\u0161tevovanej\u0161\u00edch webov\u00fdch str\u00e1nok na internete. K\u00f3d jQuery je distribuovan\u00fd pod licenciou MIT.       <\/p>\n<p> Verzia jQuery 4.0 obsahuje zmeny, ktor\u00e9 nar\u00fa\u0161aj\u00fa sp\u00e4tn\u00fa kompatibilitu, no pod\u013ea uistenia v\u00fdvoj\u00e1rov v\u00e4\u010d\u0161ina pou\u017e\u00edvate\u013eov bude schopn\u00e1 bezprobl\u00e9movo prejs\u0165 na nov\u00fa verziu s minim\u00e1lnymi \u00fapravami vo svojom k\u00f3de. Na zjednodu\u0161enie migr\u00e1cie je mo\u017en\u00e9 vyu\u017ei\u0165 \u0161peci\u00e1lny plugin. Poru\u0161enia sp\u00e4tn\u00e9 kompatibility s\u00favisia s odstr\u00e1nen\u00edm zastaran\u00e9ho k\u00f3du, odstr\u00e1nen\u00edm niektor\u00fdch intern\u00fdch nedokumentovan\u00fdch parametrov, ukon\u010den\u00edm podpory niektor\u00e9ho zbyto\u010dne zlo\u017eit\u00fdch spr\u00e1van\u00ed a ukon\u010den\u00edm podpory API, ktor\u00e9 boli predt\u00fdm vyhl\u00e1sen\u00e9 za zastaran\u00e9. Odstr\u00e1nenie zastaran\u00fdch API a prehliada\u010dov umo\u017enilo zn\u00ed\u017ei\u0165 ve\u013ekos\u0165 gzip arch\u00edvu s kni\u017enicou o 3 kB (slim-verzia teraz zaber\u00e1 19,5 kB, zatia\u013e \u010do pln\u00e1 \u2014 27,5 kB).       <\/p>\n<p>Medzi zmenami:  <\/p>\n<ul>\n<li class=\"l\"> Podpora prehliada\u010da IE 10 a star\u0161\u00edch verzi\u00ed bola ukon\u010den\u00e1 (podpora IE 11 zost\u00e1va, ale bude odstr\u00e1nen\u00e1 v Query 5.0), ako aj pre \u010fal\u0161ie star\u00e9 prehliada\u010de ako Edge Legacy, Android Browser a Firefox do verzie 115.\n<li class=\"l\"> Zabudovan\u00e1 podpora API Trusted Types, vyv\u00edjan\u00e9ho na ochranu pred manipul\u00e1ciami s DOM, ktor\u00e9 ved\u00fa k medziwebov\u00e9mu skriptovaniu (DOM XSS), napr\u00edklad pri nespr\u00e1vnom spracovan\u00ed \u00fadajov od pou\u017e\u00edvate\u013ea v blokoch eval() alebo vkladan\u00ed \u201e.innerHTML\u201c, \u010do m\u00f4\u017ee vies\u0165 k vykonaniu JavaScriptov\u00e9ho k\u00f3du v kontexte ur\u010ditej str\u00e1nky. Do met\u00f3d jQuery je teraz mo\u017en\u00e9 poskytova\u0165 HTML k\u00f3d vo forme objektov TrustedHTML.\n<li class=\"l\"> K\u00f3d jQuery je preveden\u00fd na vyu\u017e\u00edvanie JavaScriptov\u00fdch modulov ESM (ECMAScript Module) a m\u00f4\u017ee by\u0165 dod\u00e1van\u00fd a importovan\u00fd ako modul.\n<li class=\"l\"> Boli odstr\u00e1nen\u00e9 funkcie, ktor\u00e9 boli predt\u00fdm ozna\u010den\u00e9 ako zastaran\u00e9: jQuery.isArray, jQuery.parseJSON, jQuery.trim, jQuery.type, jQuery.now, jQuery.isNumeric, jQuery.isFunction, jQuery.isWindow, jQuery.camelCase, jQuery.nodeName, jQuery.cssNumber, jQuery.cssProps a jQuery.fx.interval. Namiesto t\u00fdchto funkci\u00ed sa odpor\u00fa\u010da pou\u017e\u00edva\u0165 zabudovan\u00e9 JavaScriptov\u00e9 funkcie Array.isArray(), JSON.parse(), String.prototype.trim() a Date.now()\n<li class=\"l\"> Odstr\u00e1nen\u00e9 nedokumentovan\u00e9 intern\u00e9 met\u00f3dy objektu Array \u2014 push, sort a splice.\n<li class=\"l\"> Poradie spracovania udalost\u00ed zmeny fokusu bolo upraven\u00e9 tak, aby zodpovedalo \u0161pecifik\u00e1cii W3C \u2014 blur, focusout, focus a focusin.\n<li class=\"l\"> Ve\u013ekos\u0165 zredukovanej verzie (slim), ktor\u00e1 neobsahuje moduly ajax a effects, bola zn\u00ed\u017een\u00e1 na 19.5k v d\u00f4sledku zastavenia dod\u00e1vky objektov Deferred (odpor\u00fa\u010da sa pou\u017e\u00edva\u0165 \u0161tandardn\u00e9 Promises) a Callbacks.  <\/ul>\n<p>Zdroj: <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 \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 \u0440\u0435\u043b\u0438\u0437 JavaScript-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 jQuery 4.0, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0439 \u043f\u043e \u0434\u0430\u043d\u043d\u044b\u043c \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 W3Techs \u043d\u0430 70.9% \u0438\u0437 10 \u043c\u043b\u043d 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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 5.0.4 - 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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