클립보드 복사

카카오 인앱 브라우저에서는 navigator.clipboard.writeText 사용이 불가하다.
executeCommand를 사용하자

function checkIsInAppBrowser (): boolean {
  return Boolean(
    navigator.userAgent.match(
      /inapp|NAVER|KAKAOTALK|Snapchat|Line|WirtschaftsWoche|Thunderbird|Instagram|everytimeApp|WhatsApp|Electron|wadiz|AliApp|zumapp|iPhone(.*)Whale|Android(.*)Whale|kakaostory|band|twitter|DaumApps|DaumDevice\/mobile|FB_IAB|FB4A|FBAN|FBIOS|FBSS|SamsungBrowser\/[^1]/i,
    ),
  );
};

function copy (text) {
  if (window.navigator?.clipboard && !checkIsInAppBrowser()) {
  navigator.clipboard.writeText(text);
  } else {
    const tempEl = document.createElement('textarea');
    tempEl.value = text;
    document.body.appendChild(tempEl);
    tempEl.select();
    document.execCommand('copy');
    document.body.removeChild(tempEl);
  }
}