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  <title>ondrop — full workflow</title>

  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 .75rem;font-size:1.25rem;color:#0f172a}.drag-box{display:inline-block;padding:1rem 1.25rem;border:2px dashed #cbd5e1;border-radius:8px;background:#fff;cursor:grab;user-select:none;max-width:420px}.drag-box:active{cursor:grabbing}.drop-zone{margin-top:1rem;padding:1.25rem;border:2px dashed #94a3b8;border-radius:8px;background:#f1f5f9;max-width:420px;min-height:3rem;transition:background .15s,border-color .15s}.drop-zone.over{border-color:#3b82f6;background:#eff6ff}.status{margin-top:1rem;padding:.75rem 1rem;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;font-size:.8125rem;max-width:420px}.compare{margin-top:.75rem;padding:.75rem 1rem;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;font-size:.8125rem;max-width:420px}</style>

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  <h1>ondrop vs dragend</h1>

  <p>ondrop fires on the target when dropped; dragend always fires on the source.</p>

  <div class=drag-box draggable=true id=dragSource>Drag me to the zone</div>

  <div class=drop-zone id=dropZone>Drop zone</div>

  <div class=status id=status>Waiting for drop or dragend…</div>

  <div class=compare id=compare>ondrop = target (successful drop). dragend = source (always).</div>



  <script>var source=document.getElementById("dragSource"),zone=document.getElementById("dropZone"),status=document.getElementById("status"),compare=document.getElementById("compare");source.addEventListener("dragstart",(function(e){e.dataTransfer.setData("text/plain","Item from dragstart"),e.dataTransfer.effectAllowed="move",status.textContent="dragstart — setData called on source."})),source.addEventListener("dragend",(function(e){compare.textContent="dragend fired on SOURCE — dropEffect: "+e.dataTransfer.dropEffect+"."})),zone.addEventListener("dragover",(function(e){e.preventDefault(),zone.classList.add("over")})),zone.addEventListener("dragleave",(function(e){zone.contains(e.relatedTarget)||zone.classList.remove("over")})),zone.addEventListener("drop",(function(e){e.preventDefault(),zone.classList.remove("over");var t=e.dataTransfer.getData("text/plain");zone.textContent="Received: "+t,status.textContent="drop — getData on TARGET: &quot;"+t+"&quot;.",compare.textContent="ondrop fired on TARGET — payload accepted. dragend will fire on source next."}))</script>

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HTML ondrop Attribute — Full Workflow &amp; ondrop vs dragend

HTML ondrop Attribute — Full Workflow & ondrop vs dragend
