createElements.js

var createElements = (function (document) {
	var div = document.createElement('div');

	return function (str) {
		var dF = document.createDocumentFragment();

		div.innerHTML = str;

		while (div.firstChild) {
			dF.appendChild(div.firstChild);
		}

		return dF;
	}
}(document));

/* example */

var myTable = document.createElement('table');
var trs = createElements(`
	<tr>
		<td></td>
	</tr>
	<tr>
		<td></td>
	</tr>
`);
myTable.appendChild(trs);