diff --git a/doc/datatable/edit/FilterSortEditDoc.vue b/doc/datatable/edit/FilterSortEditDoc.vue
index c098779b8..3297687ba 100644
--- a/doc/datatable/edit/FilterSortEditDoc.vue
+++ b/doc/datatable/edit/FilterSortEditDoc.vue
@@ -141,6 +141,20 @@ export default {
                         event.preventDefault();
                 break;
             }
+        },
+        isPositiveInteger(val) {
+            let str = String(val);
+
+            str = str.trim();
+
+            if (!str) {
+                return false;
+            }
+
+            str = str.replace(/^0+/, '') || '0';
+            var n = Math.floor(Number(str));
+
+            return n !== Infinity && String(n) === str && n >= 0;
         }
     }
 };
@@ -215,6 +229,21 @@ const onCellEditComplete = (event) => {
     }
 };
 
+const  isPositiveInteger = (val) => {
+    let str = String(val);
+
+    str = str.trim();
+
+    if (!str) {
+        return false;
+    }
+
+    str = str.replace(/^0+/, '') || '0';
+    var n = Math.floor(Number(str));
+
+    return n !== Infinity && String(n) === str && n >= 0;
+};
+
 <\/script>
 `,
                 data: `
@@ -261,6 +290,20 @@ const onCellEditComplete = (event) => {
                     else event.preventDefault();
                     break;
             }
+        },
+        isPositiveInteger(val) {
+            let str = String(val);
+
+            str = str.trim();
+
+            if (!str) {
+                return false;
+            }
+
+            str = str.replace(/^0+/, '') || '0';
+            var n = Math.floor(Number(str));
+
+            return n !== Infinity && String(n) === str && n >= 0;
         }
     }
 };