function getTableContent(oTable) {
		return oTable.getRows().map(function(oRow) {
			return oRow.getCells().map(function (oCell) {
				return oCell.getText ? oCell.getText() : oCell.getValue();
			});
		});
	}
Extracts the content of the visible cells of the given table.

@param {sap.ui.table.Table} oTable The table
@returns {(string[])[]} A 2 dimensional array of the visible table content