var field = document.getElementById("шотамнада");
field.select();
document.execCommand("copy");

Uncaught TypeError: field.select is not a function
    at <anonymous>:1:61

let items = document.querySelectorAll('#answerPureText');
let toClipboard = '';
items.forEach((item) => toClipboard += item.innerText);
await navigator.clipboard.writeText(toClipboard);

setTimeout(async()=>await navigator.clipboard.writeText(toClipboard), 3000)

Uncaught SyntaxError: await is only valid in async functions and the top level bodies of modules