how to make a copy button in html code example

Example 1: copy text to clipboard jquery

function copyToClipboard(element) {
 var $temp = $("<input>");
 $("body").append($temp);
 $temp.val($(element).html()).select();
 document.execCommand("copy");
 $temp.remove();
}

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>

Example 3: javascript copy to clipboard

var copyTextarea = document.getElementById("someTextAreaToCopy");
copyTextarea.select(); //select the text area
document.execCommand("copy"); //copy to clipboard

Example 4: jquery copy to clipboard

document.execCommand("copy");