Append Dynamic version(variable ) in Script tag and stylesheet based on time

<script src="/assets/abc.js?v='+new Date.getTime();" type="text/javascript"></script>

<link href="/assets/cder.css?v='+new Date.getTime();"  rel="stylesheet"></link>

or,

var myVariable = Math.floor(Math.random() * 999999999999);
<script src="/assets/abc.js?v='+myVariable ;" type="text/javascript"></script>

<link href="/assets/cder.css?v='+new Date.getTime();"  rel="stylesheet"></link>

I am trying to add dynamic version(variable ) in script tag and stylesheet based on current time or some dynamic variable?

If possible, Please help me with the shortest and efficient solution.

How to achieve that?

from Append Dynamic version(variable ) in Script tag and stylesheet based on time