How to record and play audio in javascript code example

Example 1: play audio javascript

var bMusic = new Audio('welcome1.mp3')
	bMusic.play()

Example 2: how play audio js

let myAudioElement = new Audio('audio.mp3');
myAudioElement.addEventListener("canplaythrough", event => {
  /* the audio is now playable; play it if permissions allow */
  myAudioElement.play();
});