angular how to copy text with button

1navigator.clipboard.writeText(content).then().catch(e => console.error(e));

1copyToClipboard(item): void {
2    let listener = (e: ClipboardEvent) => {
3        e.clipboardData.setData('text/plain', (item));
4        e.preventDefault();
5    };
6
7    document.addEventListener('copy', listener);
8    document.execCommand('copy');
9    document.removeEventListener('copy', listener);
10}
11