diff --git a/src/filterRows.js b/src/filterRows.js
index 9828ca0..40b59cb 100644
--- a/src/filterRows.js
+++ b/src/filterRows.js
@@ -33,7 +33,7 @@ export default function filterRows(rows, filters, data) {
 function getFilterMethod(rows, data, filter) {
     const getFormattedValue = cell => {
         let formatter = CellManager.getCustomCellFormatter(cell);
-        if (data && data.constructor.name == "DataManager") {
+        if (data && data.constructor.name === 'DataManager') {
             data = data.getData(cell.rowIndex);
         }
         if (formatter && cell.content) {