소스
<button onclick="copy()">COPY</button>
<script>
function copyToClipboard(val) {
const t = document.createElement("textarea");
document.body.appendChild(t);
t.value = val;
t.select();
document.execCommand('copy');
document.body.removeChild(t);
}
function copy() {
copyToClipboard('복사할 내용');
console.log('Copied!');
}
</script>