Select topics to narrow your question pool, then enable Random to jump to a random question matching your filters.
Given <span id="counter"></span>, which code sets its text to 5 and adds the class active?
<span id="counter">
</span>
document.querySelector('#counter')
addClass('active');
document.getElementById('counter')
document.getElementById('counter');
span.text
span.className
span.textContent
span.classList.add('active');