avoid division by zero

if preview didn't find a row, avgFieldCount will be NaN or Infinity
10 years ago · 40f5ebcbf2
1 changed files with 2 additions and 1 deletions
--- a/papaparse.js
+++ b/papaparse.js
@ -903,7 +903,8 @@
				@@ -903,7 +903,8 @@
 					}
 				}

-				avgFieldCount /= preview.data.length;
+				if (preview.data.length > 0)
+					avgFieldCount /= preview.data.length;

 				if ((typeof bestDelta === 'undefined' || delta < bestDelta)
 					&& avgFieldCount > 1.99)