{"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\/da\/blog\/news\/vypusk-javascript-biblioteki-jquery-4-0-2","title":{"rendered":"Udgivelse af JavaScript-biblioteket jQuery 4.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Efter n\u00e6sten 10 \u00e5r siden offentligg\u00f8relsen af version 3.0 og 20 \u00e5r efter projektets opstart, blev JavaScript-biblioteket jQuery 4.0 udgivet. If\u00f8lge W3Techs er det i brug p\u00e5 70,9 % af de 10 millioner mest bes\u00f8gte websteder i netv\u00e6rket. Koden til jQuery distribueres under MIT-licensen.       <\/p>\n<p> Udgivelsen af jQuery 4.0 indeholder \u00e6ndringer, der bryder bagudkompatibilitet, men if\u00f8lge udviklerne vil de fleste brugere kunne overg\u00e5 til den nye version uden st\u00f8rre problemer med minimale \u00e6ndringer i deres kode. For at lette migreringen kan der anvendes et specielt plugin. Brud p\u00e5 bagudkompatibilitet relaterer sig til fjernelse af gammelt kode, sletning af nogle interne uudokumenterede parametre, oph\u00f8r af st\u00f8tte til visse un\u00f8dvendigt komplekse adf\u00e6rd og oph\u00f8r af st\u00f8tte til API'er, der tidligere var blevet erkl\u00e6ret som for\u00e6ldede. Fjernelse af for\u00e6ldede API'er og browsere har gjort det muligt at reducere st\u00f8rrelsen af gzip-arkivet med biblioteket med 3 KB (slim-versionen fylder nu 19,5 KB, mens den fulde version fylder 27,5 KB).       <\/p>\n<p>Blandt \u00e6ndringerne:  <\/p>\n<ul>\n<li class=\"l\"> St\u00f8tten til IE 10 og \u00e6ldre versioner af denne browser er oph\u00f8rt (st\u00f8tten til IE 11 bevares, men vil blive fjernet i jQuery 5.0), samt til andre \u00e6ldre browsere s\u00e5som Edge Legacy, Android Browser og Firefox op til version 115.\n<li class=\"l\"> Indbygget st\u00f8tte til API'et Trusted Types, udviklet for at beskytte mod manipulationer af DOM, der f\u00f8rer til cross-site scripting (DOM XSS), s\u00e5som ved forkert behandling af data modtaget fra brugeren i eval()-blokke eller indsatser af &#171;.innerHTML&#187;, hvilket kan f\u00f8re til udf\u00f8relse af JavaScript-kode i konteksten af en bestemt side. HTML-kode kan nu sendes til jQuery-metoder i form af TrustedHTML-objekter.\n<li class=\"l\"> Koden til jQuery er blevet opdateret til at bruge ESM (ECMAScript Module) JavaScript-moduler og kan nu leveres og importeres som et modul.\n<li class=\"l\"> Funktioner, der tidligere var markeret som for\u00e6ldede, er fjernet: jQuery.isArray, jQuery.parseJSON, jQuery.trim, jQuery.type, jQuery.now, jQuery.isNumeric, jQuery.isFunction, jQuery.isWindow, jQuery.camelCase, jQuery.nodeName, jQuery.cssNumber, jQuery.cssProps og jQuery.fx.interval. I stedet for disse funktioner anbefales det at bruge de indbyggede JavaScript-funktioner Array.isArray(), JSON.parse(), String.prototype.trim() og Date.now().\n<li class=\"l\"> Uudokumenterede interne metoder i Array-objektet - push, sort og splice - er blevet fjernet.\n<li class=\"l\"> Behandlingen af fokus\u00e6ndringsbegivenheder er blevet tilpasset W3C-specifikationen - blur, focusout, focus og focusin.\n<li class=\"l\"> St\u00f8rrelsen p\u00e5 den reducerede variant (slim), som ikke indeholder ajax- og effects-moduler, er reduceret til 19.5k ved at stoppe leveringen af Deferred-objekter (det anbefales at bruge standard Promises) og Callbacks.  <\/ul>\n<p>Kilde: <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 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