assign text to clipboard code example
Example 1: js copy string to clipboard
const el = document.createElement('textarea');
el.value = str; //str is your string to copy
document.body.appendChild(el);
el.select();
document.execCommand('copy'); // Copy command
document.body.removeChild(el);
Example 2: javascript how-do-i-copy-to-the-clipboard-in-javascript
function copyToClipboard(text) {
var input = document.body.appendChild(document.createElement("input"));
input.value = text;
input.focus();
input.select();
document.execCommand('copy');
input.parentNode.removeChild(input);
}