{"id":39565,"date":"2024-05-18T15:30:54","date_gmt":"2024-05-18T11:00:54","guid":{"rendered":"https:\/\/wpadmin.maktabkhooneh.org\/mag\/?p=39565"},"modified":"2026-04-26T11:05:56","modified_gmt":"2026-04-26T07:35:56","slug":"event-in-javascript","status":"publish","type":"post","link":"https:\/\/maktabkhooneh.org\/mag\/event-in-javascript\/","title":{"rendered":"Event \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a – \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u062c\u0627\u0645\u0639"},"content":{"rendered":"\n

\u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u060c \u0627\u062a\u0641\u0627\u0642\u0627\u062a\u06cc \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u062f\u0631\u0648\u0646 \u0633\u06cc\u0633\u062a\u0645\u06cc \u06a9\u0647 \u062f\u0631 \u062d\u0627\u0644 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0627\u0633\u062a \u0631\u062e \u062f\u0627\u062f\u0647 \u0648 \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u06a9\u062f \u0648\u0627\u06a9\u0646\u0634\u06cc \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f. \u0628\u0647\u200c\u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0627\u06af\u0631 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0631\u0648\u06cc \u06cc\u06a9\u06cc \u0627\u0632 \u062f\u06a9\u0645\u0647\u200c\u0647\u0627\u06cc \u0633\u0627\u06cc\u062a \u06a9\u0644\u06cc\u06a9 \u06a9\u0646\u062f\u060c \u0627\u062a\u0641\u0627\u0642\u06cc \u0631\u062e \u062f\u0627\u062f\u0647 \u0648 \u06cc\u06a9 \u0648\u0627\u06a9\u0646\u0634 \u062f\u0631 \u0648\u0628\u200c\u0633\u0627\u06cc\u062a \u0645\u0634\u0627\u0647\u062f\u0647 \u062e\u0648\u0627\u0647\u062f \u06a9\u0631\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647\u200c\u0637\u0648\u0631 \u06a9\u0627\u0645\u0644 \u062f\u0631\u0628\u0627\u0631\u0647\u200c\u06cc Event \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0648 \u0646\u062d\u0648\u0647\u200c\u06cc \u06a9\u0627\u0631 \u0622\u0646 \u062f\u0631 \u0645\u0648\u062a\u0648\u0631\u0647\u0627\u06cc \u062c\u062a\u0633\u062c\u0648 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f.<\/p>\n\n\n\n

Event \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0686\u06cc\u0633\u062a\u061f<\/h2>\n\n\n\n

\u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u060c \u0648\u0627\u06a9\u0646\u0634\u200c\u0647\u0627\u06cc\u06cc \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u0628\u0627 \u06a9\u062f\u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0627\u062a\u0641\u0627\u0642 \u0645\u06cc\u200c\u0627\u0641\u062a\u0646\u062f. \u06cc\u0639\u0646\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0633\u06cc\u06af\u0646\u0627\u0644\u200c\u0647\u0627\u06cc\u06cc \u0631\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0648\u0642\u0648\u0639 \u0631\u0648\u06cc\u062f\u0627\u062f \u062a\u0648\u0644\u06cc\u062f \u06a9\u0631\u062f\u0647 \u0648 \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645\u06cc \u0631\u0627 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u062f \u062a\u0627 \u062f\u0631 \u0622\u0646 \u0627\u0642\u062f\u0627\u0645\u06cc \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u062e\u0648\u062f\u06a9\u0627\u0631 \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f (\u06cc\u0639\u0646\u06cc \u0627\u062c\u0631\u0627\u06cc \u0628\u0631\u062e\u06cc \u0627\u0632 \u06a9\u062f\u0647\u0627). Event \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062f\u0631\u0648\u0646 \u067e\u0646\u062c\u0631\u0647\u200c\u0627\u06cc \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0628\u0627\u06cc\u062f \u0622\u06cc\u062a\u0645\u06cc \u0628\u0647 \u062f\u0631\u0648\u0646 \u0622\u0646 \u0645\u062a\u0635\u0644 \u0634\u0648\u062f. \u0627\u06cc\u0646 \u0622\u06cc\u062a\u0645 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0639\u0646\u0635\u0631 \u062a\u06a9 \u06cc\u0627 \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u0639\u0646\u0627\u0635\u0631 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0634\u062f\u0647 \u0627\u0632 \u0633\u0646\u062f HTML \u062f\u0631 \u062a\u0628 \u062c\u0627\u0631\u06cc \u06cc\u0627 \u06a9\u0644 \u067e\u0646\u062c\u0631\u0647 \u0645\u0631\u0648\u0631\u06af\u0631 \u0628\u0627\u0634\u062f.<\/p>\n\n\n

\r\n
\r\n
\r\n
\r\n \r\n \r\n <\/svg>\r\n <\/div>\r\n \r\n \r\n \r\n \u062f\u0648\u0631\u0647\u200c\u0647\u0627\u06cc \u0622\u0645\u0648\u0632\u0634 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a <\/a>\r\n <\/div>\r\n\r\n \r\n \r\n

\u0627\u0646\u0648\u0627\u0639 \u0645\u062e\u062a\u0644\u0641\u06cc \u0627\u0632 \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627 \u06a9\u0647 \u0628\u0627 \u06a9\u0644\u06cc\u06a9 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u062a\u0641\u0627\u0642 \u0645\u06cc\u200c\u0627\u0641\u062a\u0646\u062f \u0639\u0628\u0627\u0631\u062a\u200c\u0627\u0646\u062f \u0627\u0632:<\/p>\n\n\n\n

    \n
  • \u06a9\u0627\u0631\u0628\u0631\u060c \u0639\u0646\u0635\u0631\u06cc \u062e\u0627\u0635 \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0631\u062f\u0647\u060c \u0631\u0648\u06cc \u0622\u0646 \u06a9\u0644\u06cc\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06cc\u0627 \u0627\u0634\u0627\u0631\u0647\u200c\u06af\u0631 \u0645\u0627\u0648\u0633 \u0631\u0648\u06cc \u0622\u0646 \u0642\u0631\u0627\u0631 \u0628\u06af\u06cc\u0631\u062f.<\/li>\n\n\n\n
  • \u0631\u0648\u06cc\u062f\u0627\u062f onclick \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0631\u0648\u06cc\u062f\u0627\u062f\u06cc \u0627\u0633\u062a \u06a9\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0631\u0648\u06cc \u06a9\u0644\u06cc\u062f\u06cc \u062f\u0631 \u0635\u0641\u062d\u0647 \u06a9\u0644\u06cc\u062f\u060c \u06a9\u0644\u06cc\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n\n\n\n
  • \u06a9\u0627\u0631\u0628\u0631 \u067e\u0646\u062c\u0631\u0647 \u0645\u0631\u0648\u0631\u06af\u0631 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0627\u062f\u0647 \u06cc\u0627 \u0622\u0646 \u0631\u0627 \u0645\u06cc\u200c\u0628\u0646\u062f\u062f.<\/li>\n\n\n\n
  • \u0641\u0631\u0645\u06cc \u0627\u0631\u0633\u0627\u0644 \u0634\u0648\u062f.<\/li>\n\n\n\n
  • \u06cc\u06a9 \u0648\u06cc\u062f\u06cc\u0648 \u067e\u062e\u0634\u060c \u0645\u0648\u0642\u0641 \u06cc\u0627 \u062a\u0645\u0627\u0645 \u0634\u0648\u062f.<\/li>\n\n\n\n
  • \u062e\u0637\u0627\u06cc\u06cc \u0631\u062e \u062f\u0647\u062f.<\/li>\n<\/ul>\n\n\n\n

    \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u062a\u0639\u062f\u0627\u062f \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0639\u0631\u0641\u06cc \u06a9\u0631\u062f\u06cc\u0645\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u06af\u0641\u062a \u062a\u0639\u062f\u0627\u062f \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u0646\u062f\u060c \u0632\u06cc\u0627\u062f \u0627\u0633\u062a.<\/p>\n\n\n\n

    \"Event
    <\/figcaption><\/figure>\n\n\n\n

    \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646\u200c\u06a9\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0628\u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627 \u067e\u0627\u0633\u062e \u062f\u0647\u062f \u0628\u0647 \u0631\u0648\u06cc\u062f\u0627\u062f \u06af\u06cc\u0631\u0646\u062f\u0647 \u06cc\u0627 Event handler \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f. \u0627\u06cc\u0646 \u0631\u0648\u06cc\u062f\u0627\u062f \u0628\u0644\u0648\u06a9 \u06a9\u062f\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f \u062a\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627\u06cc \u0631\u0648\u06cc\u062f\u0627\u062f \u06a9\u0627\u0631\u0628\u0631 \u0628\u062a\u0648\u0627\u0646\u062f \u0648\u0627\u06a9\u0646\u0634\u06cc \u0628\u0631\u0627\u06cc \u0622\u0646 \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u062f.<\/p>\n\n\n\n

    \u0645\u062b\u0627\u0644:<\/p>\n\n\n\n

    <<\/span>button><\/span><\/span>Change color<\/<\/span>button><\/span><\/span><\/code><\/pre>\n\n\n\n
    \u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 \u0631\u0648\u06cc\u062f\u0627\u062f\u06cc \u0628\u0647 \u062f\u06a9\u0645\u0647 \u0627\u0636\u0627\u0641\u0647 \u0634\u062f\u0647 \u06a9\u0647 \u0628\u0627 \u06a9\u0644\u06cc\u06a9 \u0631\u0648\u06cc \u0622\u0646\u060c \u0631\u0646\u06af \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u0646\u0645\u0648\u0646\u0647 \u06a9\u062f Event \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0631\u0646\u06af \u067e\u0633\u200c\u0632\u0645\u06cc\u0646\u0647 \u0628\u0647 \u0631\u0646\u06af \u062a\u0635\u0627\u062f\u0641\u06cc \u0631\u0627 \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u06cc\u062f:<\/p>\n\n\n\n
    const<\/span> btn =<\/span> document.<\/span>querySelector<\/span>(<\/span>\"button\"<\/span>)<\/span>;<\/span>\n\nfunction<\/span> random<\/span>(<\/span>number<\/span>)<\/span> {<\/span>\n  return<\/span> Math.<\/span>floor<\/span>(<\/span>Math.<\/span>random<\/span>(<\/span>)<\/span> *<\/span> (<\/span>number +<\/span> \u06f1<\/span>)<\/span>)<\/span>;<\/span>\n}<\/span>\n\nbtn.<\/span>addEventListener<\/span>(<\/span>\"click\"<\/span>,<\/span> (<\/span>)<\/span> =><\/span> {<\/span>\n  const<\/span> rndCol =<\/span> `<\/span>rgb(<\/span>${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span> ${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span> ${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span>)<\/span>`<\/span><\/span>;<\/span>\n  document.<\/span>body.<\/span>style.<\/span>backgroundColor =<\/span> rndCol;<\/span>\n}<\/span>)<\/span>;<\/span><\/code><\/pre>\n\n\n\n
    \u062e\u0631\u0648\u062c\u06cc \u0645\u062b\u0627\u0644 \u0641\u0648\u0642 \u0628\u0647 \u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/p>\n\n\n\n
    \"\u0627\u06cc\u0648\u0646\u062a
    <\/figcaption><\/figure>\n\n\n\n
    \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 addEventListener<\/h2>\n\n\n\n
    \u0634\u06cc event \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0647 \u0645\u062a\u062f\u06cc \u062e\u0627\u0635 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f. \u0627\u06cc\u0646 \u0645\u062a\u062f  \u0646\u0627\u0645 \u062f\u0627\u0631\u062f \u0648 \u0628\u0631\u0627\u06cc \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0646 \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u06cc \u06af\u06cc\u0631\u0646\u062f\u0647\u200c\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0646\u06af\u0627\u0647\u06cc \u062f\u0642\u06cc\u0642\u200c\u062a\u0631 \u0628\u0647 \u0645\u062b\u0627\u0644 \u0642\u0628\u0644:<\/p>\n\n\n\n
    const<\/span> btn =<\/span> document.<\/span>querySelector<\/span>(<\/span>\"button\"<\/span>)<\/span>;<\/span>\n\nfunction<\/span> random<\/span>(<\/span>number<\/span>)<\/span> {<\/span>\n  return<\/span> Math.<\/span>floor<\/span>(<\/span>Math.<\/span>random<\/span>(<\/span>)<\/span> *<\/span> (<\/span>number +<\/span> \u06f1<\/span>)<\/span>)<\/span>;<\/span>\n}<\/span>\n\nbtn.<\/span>addEventListener<\/span>(<\/span>\"click\"<\/span>,<\/span> (<\/span>)<\/span> =><\/span> {<\/span>\n  const<\/span> rndCol =<\/span> `<\/span>rgb(<\/span>${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span> ${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span> ${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span>)<\/span>`<\/span><\/span>;<\/span>\n  document.<\/span>body.<\/span>style.<\/span>backgroundColor =<\/span> rndCol;<\/span>\n}<\/span>)<\/span>;<\/span><\/code><\/pre>\n\n\n\n
    \u0639\u0646\u0635\u0631 <button> \u062f\u0631 HTML\u060c \u0631\u0648\u06cc\u062f\u0627\u062f\u06cc \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0632\u0645\u0627\u0646 \u06a9\u0644\u06cc\u06a9 \u06a9\u0631\u062f\u0646 \u0631\u0648\u06cc \u0622\u0646\u060c \u0627\u062c\u0631\u0627 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06cc\u0646 \u0631\u0648\u06cc\u062f\u0627\u062f \u062a\u0648\u0633\u0637 \u062a\u0627\u0628\u0639 ()addEventListener \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0645\u0634\u062e\u0635 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 \u062f\u0648 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u06a9\u0647 \u0639\u0628\u0627\u0631\u062a\u200c\u0627\u0646\u062f \u0627\u0632:<\/p>\n\n\n\n
      \n
    1. click: \u0627\u06cc\u0646 \u0631\u0634\u062a\u0647 \u0628\u0631\u0627\u06cc \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0646 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u0645 \u0628\u0647 \u0631\u0648\u06cc\u062f\u0627\u062f \u06a9\u0644\u06cc\u06a9 \u06af\u0648\u0634 \u062f\u0647\u06cc\u0645. \u06af\u0641\u062a\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u06a9\u0645\u0647\u200c\u0647\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631\u06cc \u0645\u0627\u0646\u0646\u062f mouseover (\u06a9\u0647 \u0628\u0627 \u062d\u0631\u06a9\u062a \u0645\u0627\u0648\u0633 \u0631\u0648\u06cc \u062f\u06a9\u0645\u0647 \u0631\u0648\u06cc\u062f\u0627\u062f\u06cc \u0631\u062e \u0645\u06cc\u200c\u062f\u0647\u062f) \u0648 keydown (\u06a9\u0647 \u0628\u0627 \u0632\u062f\u0646 \u06cc\u06a9 \u062f\u06a9\u0645\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u0631\u062e \u0645\u06cc\u200c\u062f\u0647\u062f) \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u0646\u062f.<\/li>\n\n\n\n
    2. \u062a\u0627\u0628\u0639 RGB: \u062a\u0627\u0628\u0639\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 Event \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u0648 \u0628\u0627\u0639\u062b \u062a\u0648\u0644\u06cc\u062f \u0631\u0646\u06af \u062a\u0635\u0627\u062f\u0641\u06cc \u062f\u0631 \u067e\u0633 \u0632\u0645\u06cc\u0646\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/li>\n<\/ol>\n\n\n\n
      \u0646\u0645\u0648\u0646\u0647 \u06a9\u062f \u0628\u0631\u0627\u06cc \u0646\u0627\u0645\u200c\u06af\u0630\u0627\u0631\u06cc:<\/p>\n\n\n\n
      const<\/span> btn =<\/span> document.<\/span>querySelector<\/span>(<\/span>\"button\"<\/span>)<\/span>;<\/span>\n\nfunction<\/span> random<\/span>(<\/span>number<\/span>)<\/span> {<\/span>\n  return<\/span> Math.<\/span>floor<\/span>(<\/span>Math.<\/span>random<\/span>(<\/span>)<\/span> *<\/span> (<\/span>number +<\/span> \u06f1<\/span>)<\/span>)<\/span>;<\/span>\n}<\/span>\n\nfunction<\/span> changeBackground<\/span>(<\/span>)<\/span> {<\/span>\n  const<\/span> rndCol =<\/span> `<\/span>rgb(<\/span>${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span> ${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span> ${<\/span>random<\/span>(<\/span>\u06f2\u06f5\u06f5<\/span>)<\/span>}<\/span><\/span>)<\/span>`<\/span><\/span>;<\/span>\n  document.<\/span>body.<\/span>style.<\/span>backgroundColor =<\/span> rndCol;<\/span>\n}<\/span>\n\nbtn.<\/span>addEventListener<\/span>(<\/span>\"click\"<\/span>,<\/span> changeBackground)<\/span>;<\/span><\/code><\/pre>\n\n\n