put what's on clipboard onto page javascript code example

Example 1: javascript text to clipboard

function copyToClipboard(text) {
   const elem = document.createElement('textarea');
   elem.value = text;
   document.body.appendChild(elem);
   elem.select();
   document.execCommand('copy');
   document.body.removeChild(elem);
}

Example 2: how to copy text in the clipboard in js

<html>
  <input type="text" value="Hello world"(Can be of your choice) id="myInput"(id is the name of the text, you can change it later)
<button onclick="Hello()">Copy Text</button>

<script>
  function Hello() {
  var copyText = document.getElementById('myInput')
  copyText.select();
  document.execCommand('copy')
  console.log('Copied Text')
}
</script>