JSFiddle - React, Tailwind, and code Playground

HTML

<a id="result-location" href='test'>
        <script>
        window.onload = function(){setTimeout(function () {

            document.getElementById('result-location').innerHTML = truncate("truncate this text");
            
        },1);};
        </script>
</a>

JavaScript

function truncate(string) {

    return (string.length > 5) ? string.substring(0, 5) + '...' : string;
};