{"id":133230,"date":"2025-01-15T22:52:40","date_gmt":"2025-01-15T16:52:40","guid":{"rendered":"http:\/\/rcl-radio.ru\/?p=133230"},"modified":"2025-01-15T22:53:11","modified_gmt":"2025-01-15T16:53:11","slug":"133230","status":"publish","type":"post","link":"http:\/\/rcl-radio.ru\/?p=133230","title":{"rendered":"\u0422\u0438\u043f\u044b \u0434\u0430\u043d\u043d\u044b\u0445 JavaScript"},"content":{"rendered":"

\u0412 JavaScript \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0442\u0438\u043f\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0436\u043d\u043e \u0440\u0430\u0437\u0434\u0435\u043b\u0438\u0442\u044c \u043d\u0430 \u0434\u0432\u0435 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438:<\/span><\/p>\n

    \n
  1. \u041f\u0440\u043e\u0441\u0442\u044b\u0435 \u0442\u0438\u043f\u044b (\u043f\u0440\u0438\u043c\u0438\u0442\u0438\u0432\u043d\u044b\u0435)<\/strong>:<\/span>\n
      \n
    • string<\/code>\u00a0\u2013 \u0441\u0442\u0440\u043e\u043a\u0430.<\/span><\/li>\n
    • number<\/code>\u00a0\u2013 \u0447\u0438\u0441\u043b\u043e (\u0446\u0435\u043b\u043e\u0435 \u0438\u043b\u0438 \u0441 \u043f\u043b\u0430\u0432\u0430\u044e\u0449\u0435\u0439 \u0442\u043e\u0447\u043a\u043e\u0439).<\/span><\/li>\n
    • boolean<\/code>\u00a0\u2013 \u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0442\u0438\u043f (true<\/code>\u00a0\u0438\u043b\u0438\u00a0false<\/code>).<\/span><\/li>\n
    • null<\/code>\u00a0\u2013 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435, \u043e\u0437\u043d\u0430\u0447\u0430\u044e\u0449\u0435\u0435 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u0430.<\/span><\/li>\n
    • undefined<\/code>\u00a0\u2013 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0439 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e, \u0435\u0441\u043b\u0438 \u043e\u043d\u0430 \u043d\u0435 \u0431\u044b\u043b\u0430 \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u0430.<\/span><\/li>\n
    • symbol<\/code>\u00a0\u2013 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0439 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440, \u0432\u0432\u0435\u0434\u0451\u043d\u043d\u044b\u0439 \u0432 ES6 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0445 \u043a\u043b\u044e\u0447\u0435\u0439 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432.<\/span><\/li>\n
    • bigint<\/code>\u00a0\u2013 \u0446\u0435\u043b\u043e\u0435 \u0447\u0438\u0441\u043b\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u043e\u0439 \u0434\u043b\u0438\u043d\u044b, \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u043e\u0435 \u0432 ES2020.<\/span><\/li>\n<\/ul>\n<\/li>\n
    • \u0421\u043b\u043e\u0436\u043d\u044b\u0435 \u0442\u0438\u043f\u044b<\/strong>:<\/span>\n
        \n
      • object<\/code>\u00a0\u2013 \u043e\u0431\u044a\u0435\u043a\u0442\u044b, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u043c\u0430\u0441\u0441\u0438\u0432\u044b, \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u0441\u043b\u043e\u0436\u043d\u044b\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u0434\u0430\u043d\u043d\u044b\u0445.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

        \u041f\u0440\u0438\u043c\u0435\u0440\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0440\u0438\u043c\u0438\u0442\u0438\u0432\u043d\u044b\u0445 \u0442\u0438\u043f\u043e\u0432<\/span><\/h1>\n
        let str = \"\u041f\u0440\u0438\u0432\u0435\u0442\"<\/span>; \/\/ string<\/span>\r\nlet num = 42<\/span>;       \/\/ number<\/span>\r\nlet bool = true<\/span>;    \/\/ boolean<\/span>\r\nlet nul = null<\/span>;     \/\/ null<\/span>\r\nlet undef;          \/\/ undefined<\/span>\r\nlet sym = Symbol(<\/span>)<\/span>; \/\/ symbol<\/span>\r\nlet bigInt = 123n;  \/\/ bigint<\/span><\/pre>\n
        \u041e\u0431\u044a\u0435\u043a\u0442\u044b<\/span><\/h1>\n
        \u041e\u0431\u044a\u0435\u043a\u0442\u0430\u043c\u0438 \u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u0432\u0441\u0435 \u0434\u0430\u043d\u043d\u044b\u0435, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043d\u0435 \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f \u043a \u043f\u0440\u043e\u0441\u0442\u044b\u043c \u0442\u0438\u043f\u0430\u043c. \u041a \u043d\u0438\u043c \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f:<\/span><\/p>\n
          \n
        • \u041c\u0430\u0441\u0441\u0438\u0432\u044b (Array<\/code>)<\/span><\/li>\n
        • \u0424\u0443\u043d\u043a\u0446\u0438\u0438 (Function<\/code>)<\/span><\/li>\n
        • \u041e\u0431\u044b\u0447\u043d\u044b\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u044b (Object<\/code>)<\/span><\/li>\n
        • \u0421\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u044b, \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a\u00a0Date<\/code>,\u00a0Map<\/code>,\u00a0Set<\/code>.<\/span><\/li>\n<\/ul>\n
          \u041f\u0440\u0438\u043c\u0435\u0440 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u043e\u0431\u044a\u0435\u043a\u0442\u0430:<\/span><\/p>\n
          let obj = {<\/span>\r\n  name<\/span>: \"\u0418\u0432\u0430\u043d\"<\/span>,\r\n  age: 30<\/span>,\r\n}<\/span>;\r\n\u00a0\r\nconsole.log<\/span>(<\/span>obj.name<\/span>)<\/span>; \/\/ \u0418\u0432\u0430\u043d<\/span><\/pre>\n
          \u041c\u0430\u0441\u0441\u0438\u0432:<\/span><\/p>\n
          let arr = [<\/span>1<\/span>, 2<\/span>, 3<\/span>]<\/span>;\r\nconsole.log<\/span>(<\/span>arr.length<\/span>)<\/span>; \/\/ 3<\/span><\/pre>\n
          \u0424\u0443\u043d\u043a\u0446\u0438\u044f:<\/span><\/p>\n
          function<\/span> greet(<\/span>)<\/span> {<\/span>\r\n  console.log<\/span>(<\/span>\"\u041f\u0440\u0438\u0432\u0435\u0442!\"<\/span>)<\/span>;\r\n}<\/span>\r\ngreet(<\/span>)<\/span>; \/\/ \u041f\u0440\u0438\u0432\u0435\u0442!<\/span><\/pre>\n
          \u0422\u0430\u043a\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c, \u0432 JavaScript \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0442 \u0440\u0430\u0437\u043d\u044b\u0435 \u0442\u0438\u043f\u044b \u0434\u0430\u043d\u043d\u044b\u0445, \u043a\u0430\u0436\u0434\u044b\u0439 \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u043c\u0435\u0435\u0442 \u0441\u0432\u043e\u0438 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
          \u0412 JavaScript \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0442\u0438\u043f\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0436\u043d\u043e \u0440\u0430\u0437\u0434\u0435\u043b\u0438\u0442\u044c \u043d\u0430 \u0434\u0432\u0435 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438: \u041f\u0440\u043e\u0441\u0442\u044b\u0435 \u0442\u0438\u043f\u044b (\u043f\u0440\u0438\u043c\u0438\u0442\u0438\u0432\u043d\u044b\u0435): string\u00a0\u2013 \u0441\u0442\u0440\u043e\u043a\u0430. number\u00a0\u2013 \u0447\u0438\u0441\u043b\u043e (\u0446\u0435\u043b\u043e\u0435 \u0438\u043b\u0438 \u0441 \u043f\u043b\u0430\u0432\u0430\u044e\u0449\u0435\u0439 \u0442\u043e\u0447\u043a\u043e\u0439). boolean\u00a0\u2013 \u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0442\u0438\u043f (true\u00a0\u0438\u043b\u0438\u00a0false). null\u00a0\u2013 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435, \u043e\u0437\u043d\u0430\u0447\u0430\u044e\u0449\u0435\u0435 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u0430. undefined\u00a0\u2013 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0439 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e, \u0435\u0441\u043b\u0438 \u043e\u043d\u0430 \u043d\u0435 \u0431\u044b\u043b\u0430 \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u0430. symbol\u00a0\u2013 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0439 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440, \u0432\u0432\u0435\u0434\u0451\u043d\u043d\u044b\u0439 \u0432 ES6 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0445 \u043a\u043b\u044e\u0447\u0435\u0439 […]<\/p>\n","protected":false},"author":1,"featured_media":133226,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[463],"tags":[],"class_list":["post-133230","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript"],"views":402,"_links":{"self":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/133230","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=133230"}],"version-history":[{"count":2,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/133230\/revisions"}],"predecessor-version":[{"id":133232,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/133230\/revisions\/133232"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/media\/133226"}],"wp:attachment":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=133230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=133230"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=133230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}