JSFiddle - React, Tailwind, and code Playground
by kevee
HTML
<a href="a.html" href="b.html">This link is bad</a>
<p id="number">Number of attributes: </p>
<p id="value">Value of attribute: </p>
JavaScript
var number = document.getElementById('number');
number.innerHTML = number.innerHTML + document.getElementsByTagName('a')[0].attributes.length;
var value = document.getElementById('value');
value.innerHTML = value.innerHTML + document.getElementsByTagName('a')[0].getAttribute('href');