adding comments about error

pat310 · Apr 13, 2017 · 812bc6a · 812bc6a
1 parent 9c8790d
commit 812bc6a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/logic.js b/src/logic.js
@@ -200,7 +200,10 @@ export function checkPivotCategories(actualCats, selectedCats) {
 export function tableCreator(data, rows = [], cols = [], accCatOrCB,
   accTypeOrInitVal, rowHeader) {
 
+  /** if data is empty, return empty array */
   if (data.length === 0) return [];
+
+  /** if rows/cols are not arrays, return throw an error */
   if (!Array.isArray(rows) || !Array.isArray(cols)) {
     throw new Error('rowsToPivot and colsToPivot must be of type array');
   }