how to add audio in js code example

Example 1: play sound in javascript

<script>
function play() {
  var audio = new Audio('https://interactive-examples.mdn.mozilla.net/media/examples/t-rex-roar.mp3');
  audio.play();
}
</script>
<button onclick-"play();">PLAY MY AUDIO</button>

Example 2: html play audio programmatically

document.getElementById('yourAudioTag').play();