Snapshot testing

<div class="stage"><div class="title">SNAPSHOT DIFF</div><div class="canvas"><div class="snapshot"><div><b>BEFORE</b><span>{ id: 4 }</span><span>{ role: user }</span><span class="empty"> </span></div><div><b>AFTER</b><span>{ id: 4 }</span><span>{ role: user }</span><span class="added" id="snapshotAdded">+ active: true</span></div></div><div class="snapshotNote" id="snapshotNote">new line requires review</div></div></div>

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let reviewed=false;function review(){reviewed=!reviewed;document.getElementById('snapshotAdded').classList.toggle('reviewed',reviewed);document.getElementById('snapshotNote').textContent=reviewed?'reviewed: intentional field':'new line requires review'}review();setInterval(review,1400)