Run results for: Dynamic Create of Table: insertRow() vs appending HTML

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.71 Safari/537.36 Edg/94.0.992.38

Browser: Chrome 94

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
insertRow()	51681.5 Ops/sec
Append HTML	0.9 Ops/sec

HTML Preparation code:

<table id="tbl">
  <tbody></tbody>
</table>

Script Preparation code:

var tbody = tbl.tBodies[0];

var data = { one: 'one', two: 'two', three: 'three', four: 'four', five: 'five' };

Tests:

insertRow()
var row = tbl.insertRow(); var cell = row.insertCell(); var textnode = document.createTextNode(data.one); cell.appendChild(textnode); cell = row.insertCell(); textnode = document.createTextNode(data.two); cell.appendChild(textnode); cell = row.insertCell(); textnode = document.createTextNode(data.three); cell.appendChild(textnode); cell = row.insertCell(); textnode = document.createTextNode(data.four); cell.appendChild(textnode); cell = row.insertCell(); textnode = document.createTextNode(data.five); cell.appendChild(textnode);
Append HTML
var html = '<tr>'; html += '<td>'+data.one+'</td>'; html += '<td>'+data.two+'</td>'; html += '<td>'+data.three+'</td>'; html += '<td>'+data.four+'</td>'; html += '<td>'+data.five+'</td>'; html += '</tr>'; tbody.innerHTML += html;