Reinforcement learning personalization

<div class="learn"><div class="headline">ROUND <b id="round">1</b> <span>OBSERVE → UPDATE</span></div><div class="arm"><label>HELP</label><div class="rail"><i id="helpbar"></i></div><b id="helpnum">50%</b></div><div class="arm"><label>OFFER</label><div class="rail"><i id="offerbar"></i></div><b id="offernum">50%</b></div><div class="reward" id="reward">REWARD: HELP +1</div></div>

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const rounds=[[1,50,50,'HELP +1'],[2,65,35,'HELP +1'],[3,58,42,'OFFER +1'],[4,72,28,'HELP +1']];let n=0;function show(){const [round,help,offer,reward]=rounds[n];document.querySelector('#round').textContent=round;document.querySelector('#helpbar').style.width=help+'%';document.querySelector('#offerbar').style.width=offer+'%';document.querySelector('#helpnum').textContent=help+'%';document.querySelector('#offernum').textContent=offer+'%';document.querySelector('#reward').textContent='REWARD: '+reward;n=(n+1)%rounds.length}show();setInterval(show,1800);