{"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\/hu\/blog\/news\/vypusk-javascript-biblioteki-jquery-4-0-2","title":{"rendered":"Release of JavaScript Library jQuery 4.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Majdnem 10 \u00e9vvel a 3.0 verzi\u00f3 k\u00f6zz\u00e9t\u00e9tele ut\u00e1n, \u00e9s 20 \u00e9vvel a projekt megalap\u00edt\u00e1sa ut\u00e1n megjelent a jQuery 4.0 JavaScript k\u00f6nyvt\u00e1r, amely a W3Techs adatai szerint az internet legl\u00e1togatottabb 10 milli\u00f3 weboldala k\u00f6z\u00fcl 70,9%-ban haszn\u00e1latos. A jQuery k\u00f3d MIT licenc alatt terjesztett.       <\/p>\n<p> A jQuery 4.0 megjelen\u00e9se visszafel\u00e9 nem kompatibilis v\u00e1ltoz\u00e1sokat tartalmaz, de a fejleszt\u0151k \u00edg\u00e9rete szerint a legt\u00f6bb felhaszn\u00e1l\u00f3 probl\u00e9mamentesen \u00e1tt\u00e9rhet az \u00faj verzi\u00f3ra, minim\u00e1lis k\u00f3dm\u00f3dos\u00edt\u00e1ssal. Az \u00e1tt\u00e9r\u00e9s megk\u00f6nny\u00edt\u00e9se \u00e9rdek\u00e9ben egy speci\u00e1lis b\u0151v\u00edtm\u00e9ny haszn\u00e1lhat\u00f3. A visszafel\u00e9 nem kompatibilis v\u00e1ltoz\u00e1sok a r\u00e9gi k\u00f3d elt\u00e1vol\u00edt\u00e1s\u00e1val, n\u00e9h\u00e1ny bels\u0151, nem dokument\u00e1lt param\u00e9ter t\u00f6rl\u00e9s\u00e9vel, a t\u00falbonyol\u00edtott viselked\u00e9s t\u00e1mogat\u00e1s\u00e1nak megsz\u00fcntet\u00e9s\u00e9vel \u00e9s a kor\u00e1bban elavultnak nyilv\u00e1n\u00edtott API-k t\u00e1mogat\u00e1s\u00e1nak megsz\u0171n\u00e9s\u00e9vel kapcsolatosak. Az elavult API-k \u00e9s b\u00f6ng\u00e9sz\u0151k elt\u00e1vol\u00edt\u00e1sa lehet\u0151v\u00e9 tette a gzip-arch\u00edvum m\u00e9ret\u00e9nek cs\u00f6kkent\u00e9s\u00e9t 3 KB-tal (a slim verzi\u00f3 most 19.5 KB, m\u00edg a teljes verzi\u00f3 27.5 KB).       <\/p>\n<p>A v\u00e1ltoztat\u00e1sok k\u00f6z\u00fcl:  <\/p>\n<ul>\n<li class=\"l\"> Az IE 10 \u00e9s r\u00e9gebbi b\u00f6ng\u00e9sz\u0151k t\u00e1mogat\u00e1sa le\u00e1llt (az IE 11 t\u00e1mogat\u00e1sa megmarad, de a Query 5.0-ban elt\u00e1vol\u00edtj\u00e1k), valamint m\u00e1s r\u00e9gi b\u00f6ng\u00e9sz\u0151k\u00e9, p\u00e9ld\u00e1ul az Edge Legacy, az Android Browser \u00e9s a Firefox 115-ig.\n<li class=\"l\"> Be\u00e9p\u00edtett t\u00e1mogat\u00e1sa van a Trusted Types API-nak, amelyet a DOM manipul\u00e1ci\u00f3k elleni v\u00e9delem \u00e9rdek\u00e9ben fejlesztenek, amelyek k\u00f6z\u00f6tt szerepel az intersztr\u00e1dis szkriptek (DOM XSS), p\u00e9ld\u00e1ul a felhaszn\u00e1l\u00f3t\u00f3l kapott adatok nem megfelel\u0151 kezel\u00e9se az eval() blokkokban vagy a .innerHTML besz\u00far\u00e1sokban, ami JavaScript k\u00f3d v\u00e9grehajt\u00e1s\u00e1hoz vezethet egy adott oldal kontextus\u00e1ban. A jQuery met\u00f3dusok most HTML-k\u00f3dot is fogadhatnak TrustedHTML objektumok form\u00e1j\u00e1ban.\n<li class=\"l\"> A jQuery k\u00f3dj\u00e1t az ESM (ECMAScript Module) JavaScript modulok haszn\u00e1lat\u00e1ra alak\u00edtott\u00e1k, \u00e9s modulokk\u00e9nt sz\u00e1ll\u00edthat\u00f3 \u00e9s import\u00e1lhat\u00f3.\n<li class=\"l\"> Elt\u00e1vol\u00edtott\u00e1k a kor\u00e1bban elavultnak jel\u00f6lt funkci\u00f3kat: jQuery.isArray, jQuery.parseJSON, jQuery.trim, jQuery.type, jQuery.now, jQuery.isNumeric, jQuery.isFunction, jQuery.isWindow, jQuery.camelCase, jQuery.nodeName, jQuery.cssNumber, jQuery.cssProps \u00e9s jQuery.fx.interval. E helyett a be\u00e9p\u00edtett JavaScript funkci\u00f3k, p\u00e9ld\u00e1ul Array.isArray(), JSON.parse(), String.prototype.trim() \u00e9s Date.now() haszn\u00e1lat\u00e1t aj\u00e1nlj\u00e1k.\n<li class=\"l\"> Elt\u00e1vol\u00edtott\u00e1k az Array objektum nem dokument\u00e1lt bels\u0151 met\u00f3dusait \u2014 push, sort \u00e9s splice.\n<li class=\"l\"> A f\u00f3kuszv\u00e1lt\u00e1si esem\u00e9nyek feldolgoz\u00e1si sorrendje megfelel a W3C specifik\u00e1ci\u00f3j\u00e1nak \u2014 blur, focusout, focus \u00e9s focusin.\n<li class=\"l\"> A slim version that does not include ajax and effects modules has been reduced to 19.5k by discontinuing the supply of Deferred objects (it is recommended to use standard Promises) and Callbacks.  <\/ul>\n<p>Forr\u00e1s: <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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