{"id":800,"date":"2021-07-29T13:45:57","date_gmt":"2021-07-29T11:45:57","guid":{"rendered":"http:\/\/vita.sk.vps324.nameserver.sk\/?post_type=product&#038;p=800"},"modified":"2026-02-04T12:48:28","modified_gmt":"2026-02-04T11:48:28","slug":"online-kurz-javascript-ii-mierne-pokrocily","status":"publish","type":"product","link":"https:\/\/www.vita.sk\/en\/online-kurz-javascript-ii-mierne-pokrocily\/","title":{"rendered":"Online kurz JavaScript II. Mierne Pokro\u010dil\u00fd"},"content":{"rendered":"<p>Online kurz JavaScript II. Mierne Pokro\u010dil\u00fd je pre v\u00e1s ide\u00e1lny, ak sa chcete nau\u010di\u0165 pokro\u010dilej\u0161ie princ\u00edpy pr\u00e1ce s jazykom JavaScript, preh\u013abi\u0165 porozumenie funkci\u00e1m, udalostiam a pr\u00e1ci s DOM a posun\u00fa\u0165 sa od z\u00e1kladn\u00e9ho skriptovania k systematick\u00e9mu a \u010ditate\u013en\u00e9mu k\u00f3du. <strong>Ide o akreditovan\u00fd a certifikovan\u00fd kurz na JavaScript<\/strong>. Zameriava sa na praktick\u00e9 pochopenie fungovania JavaScriptu v kontexte webov\u00fdch str\u00e1nok, interakcie s pou\u017e\u00edvate\u013eom a spracovania d\u00e1t v prehliada\u010di. V kurze sa nau\u010d\u00edme, ako spr\u00e1vne pracova\u0165 s funkciami, parametrami a argumentmi, pochopi\u0165 rozsah platnosti premenn\u00fdch a efekt\u00edvne pou\u017e\u00edva\u0165 n\u00e1vratov\u00e9 hodnoty pomocou pr\u00edkazu return. Osvoj\u00edme si systematick\u00fd pr\u00edstup k p\u00edsaniu opakovane pou\u017eite\u013en\u00e9ho k\u00f3du, ktor\u00fd je preh\u013eadn\u00fd, \u010ditate\u013en\u00fd a \u013eahko udr\u017eiavate\u013en\u00fd. Kurz sa \u010falej zameriava na udalosti v JavaScripte a pr\u00e1cu s DOM prvkami, kde sa nau\u010d\u00edme reagova\u0165 na akcie pou\u017e\u00edvate\u013ea, pracova\u0165 s atrib\u00fatmi id, vyh\u013ead\u00e1va\u0165 a manipulova\u0165 prvky pomocou getElementById a vyu\u017e\u00edva\u0165 z\u00e1kladn\u00e9 n\u00e1stroje na ladenie a kontrolu spr\u00e1vania skriptov. V\u00fdznamnou t\u00e9mou je pr\u00e1ca s re\u0165azcami, kde sa nau\u010d\u00edme spracov\u00e1va\u0165 textov\u00e9 d\u00e1ta, pou\u017e\u00edva\u0165 vstavan\u00e9 funkcie objektu String, pracova\u0165 s funkciou slice a efekt\u00edvne manipulova\u0165 s obsahom. S\u00fa\u010das\u0165ou kurzu je aj spracovanie formul\u00e1rov, valid\u00e1cia vstupov a pr\u00e1ca s udalos\u0165ou onSubmit, v\u010faka \u010domu z\u00edskame schopnos\u0165 kontrolova\u0165 a spracov\u00e1va\u0165 \u00fadaje zad\u00e1van\u00e9 pou\u017e\u00edvate\u013eom. Osobitn\u00e1 pozornos\u0165 je venovan\u00e1 regul\u00e1rnym v\u00fdrazom, ich princ\u00edpom, mo\u017enostiam pou\u017eitia a praktick\u00e9mu vyu\u017eitiu pri valid\u00e1cii d\u00e1t a vyh\u013ead\u00e1van\u00ed vzorov v textoch. Kurz dop\u013a\u0148a pr\u00e1ca s kni\u017enicou Emmet.io, zn\u00e1mou aj ako Zen Coding, ktor\u00e1 v\u00fdrazne zr\u00fdch\u013euje p\u00edsanie HTML a CSS k\u00f3du a zefekt\u00edv\u0148uje ka\u017edodenn\u00fa pr\u00e1cu v\u00fdvoj\u00e1ra. Nau\u010d\u00edme sa pou\u017e\u00edva\u0165 Emmet skratky, pracova\u0165 s oper\u00e1ciami ako Abbreviation, Merge a Join, orientova\u0165 sa v \u0161trukt\u00fare dokumentu pomocou Treeview a lep\u0161ie pracova\u0165 s koment\u00e1rmi, chybami a valid\u00e1ciou k\u00f3du. D\u00f4raz je kladen\u00fd na prepojenie JavaScriptu s HTML a CSS, pochopenie s\u00favislost\u00ed a schopnos\u0165 vytv\u00e1ra\u0165 interakt\u00edvne a funk\u010dn\u00e9 webov\u00e9 prvky. Ak sa chcete skuto\u010dne nau\u010di\u0165 pou\u017e\u00edva\u0165 JavaScript na mierne pokro\u010dilej \u00farovni a sta\u0165 sa sebavedom\u00fdm webov\u00fdm v\u00fdvoj\u00e1rom, tak toto je ide\u00e1lny online kurz pre v\u00e1s.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Online kurz JavaScript II.","protected":false},"author":27,"featured_media":974,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[121,114,73],"product_tag":[193,195],"class_list":{"0":"post-800","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-online-kurzy-javascript","7":"product_cat-online-kurzy-tvorba-web-stranok","8":"product_cat-bez-kategorie","9":"product_tag-tvorba-web-stranok","10":"product_tag-javascript","12":"first","13":"instock","14":"sale","15":"sold-individually","16":"taxable","17":"shipping-taxable","18":"purchasable","19":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v25.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Online kurz JavaScript pre mierne pokro\u010dil\u00fdch 2026 | VITA<\/title>\n<meta name=\"description\" content=\"V online kurze JavaScript II. 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