btn.addEventListener('click', () => if (timeLeft > 0) clicks++; scoreDisplay.innerText = clicks; );
<h2>Interactive Learning Tools</h2> <div id="toolList"> <a href="/apps/reflex/">Reaction Trainer</a> <a href="/apps/logic/">Puzzle Simulator</a> </div>

btn.addEventListener('click', () => if (timeLeft > 0) clicks++; scoreDisplay.innerText = clicks; );
<h2>Interactive Learning Tools</h2> <div id="toolList"> <a href="/apps/reflex/">Reaction Trainer</a> <a href="/apps/logic/">Puzzle Simulator</a> </div> unblocked games