{"id":20484,"date":"2019-03-25T14:34:47","date_gmt":"2019-03-25T13:34:47","guid":{"rendered":"http:\/\/codecool.com\/?p=20484"},"modified":"2022-08-22T15:41:16","modified_gmt":"2022-08-22T14:41:16","slug":"czym-rozni-sie-java-od-java-script","status":"publish","type":"post","link":"https:\/\/codecool.com\/pl\/czym-rozni-sie-java-od-java-script\/","title":{"rendered":"Czym r\u00f3\u017cni si\u0119 Java od Java Script?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"20484\" class=\"elementor elementor-20484\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8e3cf53 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8e3cf53\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8410bfb\" data-id=\"8410bfb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-09f3c1f elementor-widget elementor-widget-text-editor\" data-id=\"09f3c1f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Java i Java Script &#8211; podobie\u0144stwo ich nazw powoduje ciekawe, nieraz \u015bmieszne konsekwencje i b\u0142\u0119dy. S\u0105 to jednak dwa diametralnie r\u00f3\u017cne j\u0119zyki programowania. Podstawow\u0105 r\u00f3\u017cnic\u0105 mi\u0119dzy Java a Java Script jest to, \u017ce pierwszy jest back-endowym, a ten drugi front-endowym j\u0119zykiem programowania. Poznaj wszystkie r\u00f3\u017cnice mi\u0119dzy tymi j\u0119zykami i ju\u017c nigdy ich ze sob\u0105 nie pomyl!<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7614aa0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7614aa0\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f7eb21f\" data-id=\"f7eb21f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-65c176a elementor-widget elementor-widget-image\" data-id=\"65c176a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"540\" height=\"540\" src=\"https:\/\/codecool.com\/wp-content\/uploads\/2021\/12\/IMG_2286_ok_resize-540x540-1.jpg\" class=\"attachment-large size-large wp-image-20422\" alt=\"\" srcset=\"https:\/\/codecool.com\/wp-content\/uploads\/2021\/12\/IMG_2286_ok_resize-540x540-1.jpg 540w, https:\/\/codecool.com\/wp-content\/uploads\/2021\/12\/IMG_2286_ok_resize-540x540-1-300x300.jpg 300w, https:\/\/codecool.com\/wp-content\/uploads\/2021\/12\/IMG_2286_ok_resize-540x540-1-150x150.jpg 150w\" sizes=\"(max-width: 540px) 100vw, 540px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-70b758a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"70b758a\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5d1f95d\" data-id=\"5d1f95d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4965285 elementor-widget elementor-widget-heading\" data-id=\"4965285\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Java is to JavaScript as ham is to hamster<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-196db96 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"196db96\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-162551f\" data-id=\"162551f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5c5343c elementor-widget elementor-widget-text-editor\" data-id=\"5c5343c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>M\u00f3wi si\u0119, \u017ce \u201cJava is to JavaScript as ham is to hamster\u201d. Ten sam przedrostek w nazwie, ale dwa zupe\u0142nie r\u00f3\u017cne <a href=\"https:\/\/codecool.com\/pl\/wiedza\/jakie-sa-jezyki-programowania-codecool-pl\/\">j\u0119zyki programowania<\/a>. Wszyscy pracownicy Codecool, nawet Ci nie zwi\u0105zani z programowaniem, doskonale zdaj\u0105 sobie spraw\u0119, \u017ce Java to nie to samo co <a href=\"https:\/\/codecool.com\/pl\/wiedza\/javascript-gdzie-wykorzystuje-sie-js-codecool-pl\/\">Java Script<\/a>. Myli\u0107 te dwa j\u0119zyki? Niedopuszczalne! Ten b\u0142\u0105d cz\u0119sto przytrafia si\u0119 pocz\u0105tkuj\u0105cym IT rekruterom, kt\u00f3rzy poszukuj\u0105c programist\u00f3w Javy, wyszukuj\u0105 na Linkedinie fraz\u0119 \u201cJava Developer\u201d, a otrzymuj\u0105 wyniki, kt\u00f3re nie do ko\u0144ca mog\u0105 by\u0107 adekwatne, bo wyszukiwarka uznaje za w\u0142a\u015bciw\u0105 odpowied\u017a Java Script. W drug\u0105 stron\u0119 dzia\u0142a to dok\u0142adnie tak samo. Jedni i drudzy programi\u015bci mog\u0105 si\u0119 obrazi\u0107 na tak\u0105 ignorancj\u0119 pracownik\u00f3w dzia\u0142\u00f3w HR. Tw\u00f3rcy Java Scriptu z pewno\u015bci\u0105 nie przewidzieli, \u017ce nazwa ich j\u0119zyka, zainspirowana popularn\u0105 w\u00f3wczas Jav\u0105, b\u0119dzie nios\u0142a ze sob\u0105 takie konsekwencje i nieporozumienia.<\/p><p>Podobie\u0144stwa mi\u0119dzy jednym i drugim j\u0119zykiem s\u0105 znikome. Na pierwszy rzut oka kod mo\u017ce wygl\u0105da\u0107 podobnie. Tw\u00f3rcy Java Scriptu troch\u0119 inspirowali si\u0119 wygl\u0105dem kodu Javy, ale nie samym dzia\u0142aniem. Gdy tworzyli Java Script, j\u0119zyk Java prze\u017cywa\u0142 czas du\u017cej popularno\u015bci. Zainspirowanie si\u0119 nazw\u0105 by\u0142o wi\u0119c chwytem czysto marketingowym.<\/p><p>Najwi\u0119ksza r\u00f3\u017cnica mi\u0119dzy Jav\u0105 a Java Script? Java jest j\u0119zykiem u\u017cywanym g\u0142\u00f3wnie w back-endzie, natomiast Java Script jest najcz\u0119\u015bciej u\u017cywany we front-endzie. Java i Java Script s\u0142u\u017c\u0105 do czego innego, a spos\u00f3b programowania w ka\u017cdym z nich wygl\u0105da zupe\u0142nie inaczej. Java Script jest j\u0119zykiem asynchronicznym, a Java synchronicznym, nie s\u0105 wi\u0119c zgodne na p\u0142aszczy\u017anie paradygmat\u00f3w programowania.<\/p><p>Warto zna\u0107 oba te j\u0119zyki, bo w tym momencie na rynku bardzo poszukiwani s\u0105 tzw. full-stack developerzy (sprawd\u017a artyku\u0142<a href=\"https:\/\/codecool.com\/pl\/blog\/full-stack-developer-kim-jest-i-czym-sie-zajmuje\/\"><em> Kim jest full-stack developer<\/em><\/a>), czyli programi\u015bci, kt\u00f3rzy potrafi\u0105 programowa\u0107 zar\u00f3wno we front-endzie, jak i w back-endzie. Znajomo\u015b\u0107 obu j\u0119zyk\u00f3w: Java Script i Javy mo\u017ce by\u0107 wi\u0119c bardzo przydatna. W trakcie <a href=\"https:\/\/codecool.com\/pl\/okursach\/\">kursu programowania<\/a> Codecool dbamy o to, by studenci poznali oba te j\u0119zyki. Nie ka\u017cdy jednak chce by\u0107 full-stack developerem. Z my\u015bl\u0105 o programistach, kt\u00f3rzy uznaj\u0105 wy\u0142\u0105cznie Jav\u0119, powstaj\u0105 rozwi\u0105zania, dzi\u0119ki kt\u00f3rym kod Javy automatycznie kompiluje si\u0119 do Java Scriptu.<\/p><p><strong>Zapisz si\u0119 na <a href=\"https:\/\/codecool.com\/pl\/course\/full-stack-developer\/\">kurs full-stack developera<\/a><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-19fd1ca elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"19fd1ca\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2141f7f\" data-id=\"2141f7f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e77532a elementor-widget elementor-widget-heading\" data-id=\"e77532a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Czym jest JAVA?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6e2510e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6e2510e\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c4632a7\" data-id=\"c4632a7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-26dab2a elementor-widget elementor-widget-text-editor\" data-id=\"26dab2a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Java to <a href=\"https:\/\/codecool.com\/pl\/wiedza\/czym-jest-programowanie-obiektowe-codecool-pl\/\">obiektowy j\u0119zyk programowania<\/a>, kt\u00f3ry zrewolucjonizowa\u0142 rozw\u00f3j j\u0119zyk\u00f3w programowania. Nie kompiluje si\u0119 do kodu maszynowego, tylko do tzw. kodu bajtowego, kt\u00f3ry jest uruchamiany przez tzw. Wirtualn\u0105 maszyn\u0119 Javy, kt\u00f3r\u0105 mo\u017cemy zainstalowa\u0107 na r\u00f3\u017cnych systemach. Dzi\u0119ki temu progrmi\u015bci pisz\u0105cy kod w Javie, nie musz\u0105 przejmowa\u0107 si\u0119 tym, czy pisz\u0105 na Windowsie, <a href=\"https:\/\/codecool.com\/pl\/wiedza\/system-linux-czym-jest-i-czy-warto-z-niego-korzystac-codecool-pl\/\">Linuxie<\/a> czy jakiejkolwiek innej platformie &#8211; ten kod b\u0119dzie dzia\u0142a\u0142 wsz\u0119dzie, gdy\u017c Wirtualna maszyna Javy obs\u0142uguje wszystkie systemy.<\/p><p>Java jest j\u0119zykiem dobrze u\u0142o\u017conym &#8211; pojawienie si\u0119 ka\u017cdej kolejnej wersji zaczyna si\u0119 od etapu specyfikacji, w trakcie kt\u00f3rego in\u017cynierowie zastanawiaj\u0105 si\u0119, jak zrobi\u0107 to zgodnie ze standardami.<\/p><p><strong>Przeczytaj r\u00f3wnie\u017c:<\/strong><a href=\"https:\/\/codecool.com\/pl\/wiedza\/czym-jest-algorytmika\/\"> Czym jest algorytmika?<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d9cf679 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d9cf679\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6531e69\" data-id=\"6531e69\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-03cc033 elementor-widget elementor-widget-heading\" data-id=\"03cc033\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Charakterystyka Java Script<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-911644c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"911644c\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6a1c4cf\" data-id=\"6a1c4cf\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2fb2c34 elementor-widget elementor-widget-text-editor\" data-id=\"2fb2c34\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Java Script to j\u0119zyk front-endowy, kt\u00f3rego kod dzia\u0142a najcz\u0119\u015bciej w przegl\u0105darce. W por\u00f3wnaniu z Jav\u0105, Java Script to wolna amerykanka! Pierwsza wersja tego j\u0119zyka powsta\u0142a zaledwie w tydzie\u0144 i mia\u0142a niewiele funkcjonalno\u015bci. Sami tw\u00f3rcy nie spodziewali si\u0119, \u017ce ten j\u0119zyk tak si\u0119 rozwinie, zyska szerokie zastosowanie i zostanie najpopularniejszym j\u0119zykiem programowania na \u015bwiecie. Pocz\u0105tkowo w tworzeniu Java Script panowa\u0142a spora dowolno\u015b\u0107, a kolejne wersje j\u0119zyka dodawa\u0142y nie tylko nowe funkcjonalno\u015bci, ale i sporo chaosu. Wreszcie pojawi\u0142 si\u0119 spos\u00f3b specyfikowania i tw\u00f3rcy Java Script zacz\u0119li si\u0119 zastanawia\u0107, jak j\u0119zyk ma dzia\u0142a\u0107. Poniewa\u017c jednak j\u0119zyk musi by\u0107 wstecznie kompatybilny z poprzednimi wersjami, to nadal zosta\u0142o w nim troch\u0119 ba\u0142aganu.<\/p><p><strong>Zainteresuje Ci\u0119 r\u00f3wnie\u017c: <\/strong><a href=\"https:\/\/codecool.com\/pl\/wiedza\/przydatne-skrypty-w-javascript-codecool-pl\/\">Przydatne skrypty w JavaScript<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cde2dd6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cde2dd6\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-61b7079\" data-id=\"61b7079\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-de9641d elementor-widget elementor-widget-heading\" data-id=\"de9641d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Podsumowanie<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-df6bf1a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"df6bf1a\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5b49b91\" data-id=\"5b49b91\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-16cebc5 elementor-widget elementor-widget-text-editor\" data-id=\"16cebc5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Mylenie Java i Java Script to b\u0142\u0105d, kt\u00f3ry zdarza si\u0119 ignorantom i nowicjuszom, ale nie przystoi ju\u017c pocz\u0105tkuj\u0105cym programistom. Jedyne podobie\u0144stwo mi\u0119dzy Java a Java Script to cz\u0119\u015b\u0107 nazwy, poza tym wi\u0119cej je dzieli ni\u017c \u0142\u0105czy. Znajomo\u015b\u0107 obu tych j\u0119zyk\u00f3w mo\u017ce zapewni\u0107 programi\u015bcie \u015bwietne oferty pracy na stanowisku full-stack developera.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Java i Java Script &#8211; podobie\u0144stwo ich nazw powoduje ciekawe, nieraz \u015bmieszne konsekwencje i b\u0142\u0119dy. S\u0105 to jednak dwa diametralnie r\u00f3\u017cne j\u0119zyki programowania. Podstawow\u0105 r\u00f3\u017cnic\u0105 mi\u0119dzy Java a Java Script jest to, \u017ce pierwszy jest back-endowym, a ten drugi front-endowym j\u0119zykiem programowania. Poznaj wszystkie r\u00f3\u017cnice mi\u0119dzy tymi j\u0119zykami i ju\u017c nigdy ich ze sob\u0105 nie [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":20422,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[133],"tags":[],"class_list":["post-20484","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wiedza"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.4 (Yoast SEO v24.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Czym r\u00f3\u017cni si\u0119 Java od Java Script? - Codecool<\/title>\n<meta name=\"description\" content=\"J\u0119zyki Java i Java Script s\u0105 cz\u0119sto mylone, dlatego przeczytaj nasz artyku\u0142 i dowiedz si\u0119 o nich wi\u0119cej\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/codecool.com\/pl\/czym-rozni-sie-java-od-java-script\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Czym r\u00f3\u017cni si\u0119 Java od Java Script?\" \/>\n<meta property=\"og:description\" content=\"J\u0119zyki Java i Java Script s\u0105 cz\u0119sto mylone, dlatego przeczytaj nasz artyku\u0142 i dowiedz si\u0119 o nich wi\u0119cej\" \/>\n<meta property=\"og:url\" content=\"https:\/\/codecool.com\/pl\/czym-rozni-sie-java-od-java-script\/\" \/>\n<meta property=\"og:site_name\" content=\"Codecool\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/CodecoolOfficial\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-03-25T13:34:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-22T14:41:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/codecool.com\/wp-content\/uploads\/2021\/12\/IMG_2286_ok_resize-540x540-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"540\" \/>\n\t<meta property=\"og:image:height\" content=\"540\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Dora Hoffman\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Codecool_global\" \/>\n<meta name=\"twitter:site\" content=\"@Codecool_global\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dora Hoffman\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minuty\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Czym r\u00f3\u017cni si\u0119 Java od Java Script? 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