How can I display values of an array in an inline command without the “,” in JavaScript?

Question

I have a JavaScript where I created the 'z' array, which is the current hour and minute. I would like to print 'z' onclick, but not in an array format.

If the current time is 2:18, the output of the code below is: 2,18. What I would like is 2:18.

Thank you for your consideration and answer!

<script>
  var today = new Date();  
  h = today.getHours();  
  m = today.getMinutes();  
  z = [h,m];  
</script>  

<button onclick="document.getElementById('demo').innerHTML=z">time</button>
<p id="demo"></p>

Answer 1

While there are many better ways to do this, you can use: z.join(':')

I would check out http://momentjs.com/

Answer 2

document.getElementById('demo').innerHTML=z[0]+':'+z[1];

Answer 3

Change z to:

z = h + ":" + m;

It will display as expected.