Fix sample code in layer.md (#4425)

visgl · Mar 27, 2020 · 621bcb9 · 621bcb9
1 parent 6f4f258
commit 621bcb9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/api-reference/layer.md b/docs/api-reference/layer.md
@@ -296,7 +296,7 @@ function updateData(index, item) {
   const layer = new ScatterplotLayer({
     data,
     // Only update the attributes at `index``
-    _dataDiff: (oldData, newData) => [{startRow: index, endRow: index + 1}],
+    _dataDiff: (newData, oldData) => [{startRow: index, endRow: index + 1}],
     ...
   });
   deck.setProps({layers: [layer]});