{"id":133304,"date":"2025-01-18T23:44:42","date_gmt":"2025-01-18T17:44:42","guid":{"rendered":"http:\/\/rcl-radio.ru\/?p=133304"},"modified":"2025-01-18T23:44:42","modified_gmt":"2025-01-18T17:44:42","slug":"%d0%ba%d0%b0%d0%ba-%d0%b8%d1%81%d0%ba%d0%b0%d1%82%d1%8c-%d1%8d%d0%bb%d0%b5%d0%bc%d0%b5%d0%bd%d1%82%d1%8b-%d0%b2-%d0%bc%d0%b0%d1%81%d1%81%d0%b8%d0%b2%d0%b5-%d1%81-%d0%b8%d1%81%d0%bf%d0%be%d0%bb%d1%8c","status":"publish","type":"post","link":"http:\/\/rcl-radio.ru\/?p=133304","title":{"rendered":"\u041a\u0430\u043a \u0438\u0441\u043a\u0430\u0442\u044c \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c JavaScript"},"content":{"rendered":"

\u0420\u0430\u0431\u043e\u0442\u0430 \u0441 \u043c\u0430\u0441\u0441\u0438\u0432\u0430\u043c\u0438 \u2014 \u0432\u0430\u0436\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u044c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043d\u0430 JavaScript. \u0427\u0430\u0441\u0442\u043e \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u043d\u0430\u0439\u0442\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435, \u0431\u0443\u0434\u044c \u0442\u043e \u0434\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0435\u0433\u043e \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f, \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0438\u043d\u0434\u0435\u043a\u0441\u0430 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430 \u0438\u043b\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0434\u0440\u0443\u0433\u0438\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439. \u0412 JavaScript \u0434\u043b\u044f \u044d\u0442\u0438\u0445 \u0446\u0435\u043b\u0435\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0435 \u043c\u0435\u0442\u043e\u0434\u044b, \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a includes(<\/span>)<\/span>, findIndex(<\/span>)<\/span> \u0438 \u0434\u0440\u0443\u0433\u0438\u0435. \u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0438\u0445 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u043d\u0430 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0435.<\/p>\n

\u0428\u0430\u0433 1<\/span>: \u041e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u043c\u0430\u0441\u0441\u0438\u0432\u0430 \u0438 \u0438\u0441\u043a\u043e\u043c\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430<\/strong>
\n\u041d\u0430\u0447\u043d\u0435\u043c \u0441 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043c\u0430\u0441\u0441\u0438\u0432\u0430 \u0438 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u044b \u0445\u043e\u0442\u0438\u043c \u043d\u0430\u0439\u0442\u0438.<\/p>\n

\/\/ \u041c\u0430\u0441\u0441\u0438\u0432 \u0447\u0438\u0441\u0435\u043b<\/span>
\nconst numbers = [<\/span>10<\/span>, 20<\/span>, 30<\/span>, 40<\/span>, 50<\/span>]<\/span>;<\/p>\n

\/\/ \u0418\u0441\u043a\u043e\u043c\u044b\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442<\/span>
\nconst searchElement = 30<\/span>;<\/p><\/blockquote>\n

\u0417\u0434\u0435\u0441\u044c \u0443 \u043d\u0430\u0441 \u0435\u0441\u0442\u044c \u043c\u0430\u0441\u0441\u0438\u0432 \u0447\u0438\u0441\u0435\u043b [<\/span>10<\/span>, 20<\/span>, 30<\/span>, 40<\/span>, 50<\/span>]<\/span>, \u0438 \u043c\u044b \u0445\u043e\u0442\u0438\u043c \u043d\u0430\u0439\u0442\u0438 \u0432 \u043d\u0435\u043c \u0447\u0438\u0441\u043b\u043e 30<\/span>.<\/p>\n

\u0428\u0430\u0433 2<\/span>: \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043c\u0435\u0442\u043e\u0434\u0430 includes(<\/span>)<\/span><\/strong>
\n\u041c\u0435\u0442\u043e\u0434 includes(<\/span>)<\/span> \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u0442 \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430 \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435 \u0438 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 true<\/span>, \u0435\u0441\u043b\u0438 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u043d\u0430\u0439\u0434\u0435\u043d, \u0438 false<\/span> \u0432 \u043f\u0440\u043e\u0442\u0438\u0432\u043d\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435.<\/p>\n

\/\/ \u041f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u043c, \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u043b\u0438 \u043c\u0430\u0441\u0441\u0438\u0432 \u0438\u0441\u043a\u043e\u043c\u044b\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442<\/span>
\nconst isFound = numbers.includes<\/span>(<\/span>searchElement)<\/span>;<\/p>\n

console.log<\/span>(<\/span>isFound)<\/span>; \/\/ true<\/span><\/p><\/blockquote>\n

\u0412 \u0434\u0430\u043d\u043d\u043e\u043c \u043f\u0440\u0438\u043c\u0435\u0440\u0435 \u043c\u0435\u0442\u043e\u0434 includes(<\/span>)<\/span> \u0432\u0435\u0440\u043d\u0435\u0442 true<\/span>, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u0447\u0438\u0441\u043b\u043e 30<\/span> \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442\u0441\u044f \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435 numbers.<\/p>\n

\u0428\u0430\u0433 3<\/span>: \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043c\u0435\u0442\u043e\u0434\u0430 findIndex(<\/span>)<\/span><\/strong>
\n\u0415\u0441\u043b\u0438 \u0432\u0430\u043c \u043d\u0443\u0436\u0435\u043d \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0444\u0430\u043a\u0442 \u043d\u0430\u043b\u0438\u0447\u0438\u044f \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430, \u043d\u043e \u0438 \u0435\u0433\u043e \u043f\u043e\u0437\u0438\u0446\u0438\u044f \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u043c\u0435\u0442\u043e\u0434 findIndex(<\/span>)<\/span>. \u042d\u0442\u043e\u0442 \u043c\u0435\u0442\u043e\u0434 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 \u0438\u043d\u0434\u0435\u043a\u0441 \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0432\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430 \u0432 \u043c\u0430\u0441\u0441\u0438\u0432, \u0435\u0441\u043b\u0438 \u043e\u043d \u043d\u0430\u0439\u0434\u0435\u043d, \u043b\u0438\u0431\u043e —1<\/span>, \u0435\u0441\u043b\u0438 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442.<\/p>\n

\/\/ \u041d\u0430\u0445\u043e\u0434\u0438\u043c \u0438\u043d\u0434\u0435\u043a\u0441 \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0432\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0438\u0441\u043a\u043e\u043c\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430<\/span>
\nconst index<\/span> = numbers.findIndex<\/span>(<\/span>(<\/span>element)<\/span> =><\/span> element === searchElement)<\/span>;<\/p>\n

console.log<\/span>(<\/span>index<\/span>)<\/span>; \/\/ 2<\/span><\/p><\/blockquote>\n

\u0412 \u043d\u0430\u0448\u0435\u043c \u043f\u0440\u0438\u043c\u0435\u0440\u0435 \u043c\u0435\u0442\u043e\u0434 findIndex(<\/span>)<\/span> \u0432\u0435\u0440\u043d\u0435\u0442 2<\/span>, \u0442\u0430\u043a \u043a\u0430\u043a \u0447\u0438\u0441\u043b\u043e 30<\/span> \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0430 \u0442\u0440\u0435\u0442\u044c\u0435\u0439 \u043f\u043e\u0437\u0438\u0446\u0438\u0438 \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435 (<\/span>\u0438\u043d\u0434\u0435\u043a\u0441\u0430\u0446\u0438\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u0442\u0441\u044f \u0441 \u043d\u0443\u043b\u044f)<\/span>.<\/p>\n

\u0428\u0430\u0433 4<\/span>: \u041e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u0432 \u043f\u043e\u0438\u0441\u043a\u0430<\/strong>
\n\u041f\u043e\u0441\u043b\u0435 \u0442\u043e\u0433\u043e \u043a\u0430\u043a \u043c\u044b \u043d\u0430\u0448\u043b\u0438 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u0438\u043b\u0438 \u0435\u0433\u043e \u0438\u043d\u0434\u0435\u043a\u0441, \u043c\u043e\u0436\u0435\u043c \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u043f\u043e\u0438\u0441\u043a\u0430. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0432\u044b\u0432\u0435\u0441\u0442\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435 \u043e \u043d\u0430\u043b\u0438\u0447\u0438\u0438 \u0438\u043b\u0438 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0438 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430.<\/p>\n

if<\/span> (<\/span>isFound)<\/span> {<\/span>
\nconsole.log<\/span>(<\/span>`\u042d\u043b\u0435\u043c\u0435\u043d\u0442 ${<\/span>searchElement}<\/span> \u043d\u0430\u0439\u0434\u0435\u043d \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435.`)<\/span>;
\n}<\/span> else<\/span> {<\/span>
\nconsole.log<\/span>(<\/span>`\u042d\u043b\u0435\u043c\u0435\u043d\u0442 ${<\/span>searchElement}<\/span> \u043d\u0435 \u043d\u0430\u0439\u0434\u0435\u043d \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435.`)<\/span>;
\n}<\/span><\/p><\/blockquote>\n

\u0410\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u043e \u043c\u043e\u0436\u043d\u043e \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0442\u044c \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u043f\u043e\u0438\u0441\u043a\u0430 \u043f\u043e \u0438\u043d\u0434\u0435\u043a\u0441\u0443:<\/p>\n

if<\/span> (<\/span>index<\/span> !<\/span>== —1<\/span>)<\/span> {<\/span>
\nconsole.log<\/span>(<\/span>`\u042d\u043b\u0435\u043c\u0435\u043d\u0442 ${<\/span>searchElement}<\/span> \u043d\u0430\u0439\u0434\u0435\u043d \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435 \u043d\u0430 \u043f\u043e\u0437\u0438\u0446\u0438\u0438 ${<\/span>index<\/span> + 1<\/span>}<\/span>.`)<\/span>;
\n}<\/span> else<\/span> {<\/span>
\nconsole.log<\/span>(<\/span>`\u042d\u043b\u0435\u043c\u0435\u043d\u0442 ${<\/span>searchElement}<\/span> \u043d\u0435 \u043d\u0430\u0439\u0434\u0435\u043d \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435.`)<\/span>;
\n}<\/span><\/p><\/blockquote>\n

\u041f\u043e\u043b\u043d\u044b\u0439 \u043a\u043e\u0434<\/strong>
\n\u041d\u0438\u0436\u0435 \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d \u043f\u043e\u043b\u043d\u044b\u0439 \u043a\u043e\u0434 \u043f\u0440\u0438\u043c\u0435\u0440\u0430, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0438\u0439 \u0432\u0441\u0435 \u0448\u0430\u0433\u0438:<\/p>\n

\/\/ \u041c\u0430\u0441\u0441\u0438\u0432 \u0447\u0438\u0441\u0435\u043b<\/span>
\nconst numbers = [<\/span>10<\/span>, 20<\/span>, 30<\/span>, 40<\/span>, 50<\/span>]<\/span>;<\/p>\n

\/\/ \u0418\u0441\u043a\u043e\u043c\u044b\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442<\/span>
\nconst searchElement = 30<\/span>;<\/p>\n

\/\/ \u041f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u043c, \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u043b\u0438 \u043c\u0430\u0441\u0441\u0438\u0432 \u0438\u0441\u043a\u043e\u043c\u044b\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442<\/span>
\nconst isFound = numbers.includes<\/span>(<\/span>searchElement)<\/span>;<\/p>\n

\/\/ \u041d\u0430\u0445\u043e\u0434\u0438\u043c \u0438\u043d\u0434\u0435\u043a\u0441 \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0432\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0438\u0441\u043a\u043e\u043c\u043e\u0433\u043e \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u0430<\/span>
\nconst index<\/span> = numbers.findIndex<\/span>(<\/span>(<\/span>element)<\/span> =><\/span> element === searchElement)<\/span>;<\/p>\n

if<\/span> (<\/span>isFound)<\/span> {<\/span>
\nconsole.log<\/span>(<\/span>`\u042d\u043b\u0435\u043c\u0435\u043d\u0442 ${<\/span>searchElement}<\/span> \u043d\u0430\u0439\u0434\u0435\u043d \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435.`)<\/span>;
\n}<\/span> else<\/span> {<\/span>
\nconsole.log<\/span>(<\/span>`\u042d\u043b\u0435\u043c\u0435\u043d\u0442 ${<\/span>searchElement}<\/span> \u043d\u0435 \u043d\u0430\u0439\u0434\u0435\u043d \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435.`)<\/span>;
\n}<\/span><\/p>\n

if<\/span> (<\/span>index<\/span> !<\/span>== —1<\/span>)<\/span> {<\/span>
\nconsole.log<\/span>(<\/span>`\u042d\u043b\u0435\u043c\u0435\u043d\u0442 ${<\/span>searchElement}<\/span> \u043d\u0430\u0439\u0434\u0435\u043d \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435 \u043d\u0430 \u043f\u043e\u0437\u0438\u0446\u0438\u0438 ${<\/span>index<\/span> + 1<\/span>}<\/span>.`)<\/span>;
\n}<\/span> else<\/span> {<\/span>
\nconsole.log<\/span>(<\/span>`\u042d\u043b\u0435\u043c\u0435\u043d\u0442 ${<\/span>searchElement}<\/span> \u043d\u0435 \u043d\u0430\u0439\u0434\u0435\u043d \u0432 \u043c\u0430\u0441\u0441\u0438\u0432\u0435.`)<\/span>;
\n}<\/span><\/p><\/blockquote>\n

\"\"<\/a><\/p>\n

\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/strong>
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