Copy to Clipboard

1const copyToClipboard = str => {
2  const { clipboard } = window.navigator;
3
4  // if clipboard API not supported
5  if (!clipboard || typeof clipboard.writeText !== `function`) {
6    const textarea = document.createElement(`textarea`);
7    textarea.value = str;
8    textarea.setAttribute(`readonly`, true);
9    textarea.setAttribute(`contenteditable`, true);
10    textarea.style.position = `absolute`;
11    textarea.style.left = `-9999px`;
12    document.body.appendChild(textarea);
13    textarea.select();
14    const range = document.createRange();
15    const sel = window.getSelection();
16    sel.removeAllRanges();
17    sel.addRange(range);
18    textarea.setSelectionRange(0, textarea.value.length);
19    document.execCommand(`copy`);
20    document.body.removeChild(textarea);
21
22    return Promise.resolve(true);
23  }
24
25  return clipboard.writeText(str);
26};