How to toggle audio play() pause() with one button or link?

Question

I have an audio file that plays when an anchor tag is clicked. If the anchor tag is clicked again, I want the audio to pause, I just don't know enough about javascript to pull this second half off. I don't want to change the content of the anchor tag they click, I just want the audio file to start and pause whenever they click the tag.

This is what I have so far, which at least makes the sound file playable:

<audio id="audio" src="/Demo.mp3"></audio>
<a onClick="document.getElementById('audio').play()">Click here to hear.</a>

Answer 1

A Vanilla Javascript way to do what you required.

Note: I've noticed comments on other question with multiple upvotes for a native js approach and saw the OP has no jquery tag.

So WORKING EXAMPLE:

SOLN 1: (my initial soln using events)

var myAudio = document.getElementById("myAudio");
var isPlaying = false;

function togglePlay() {
  isPlaying ? myAudio.pause() : myAudio.play();
};

myAudio.onplaying = function() {
  isPlaying = true;
};
myAudio.onpause = function() {
  isPlaying = false;
};

<audio id="myAudio" src="http://www.sousound.com/music/healing/healing_01.mp3" preload="auto">
</audio>
<a onClick="togglePlay()">Click here to hear.</a>

SOLN 2: (using myAudio.paused property based on dandavi's comment)

var myAudio = document.getElementById("myAudio");

function togglePlay() {
  return myAudio.paused ? myAudio.play() : myAudio.pause();
};

<audio id="myAudio" src="http://www.sousound.com/music/healing/healing_01.mp3" preload="auto">
</audio>
<a onClick="togglePlay()">Click here to hear.</a>