From: Nick Downie <hello@nickdownie.com>
Date: Wed, 2 Jul 2014 20:09:04 +0000 (+0100)
Subject: Prevent spare datasets from breaking MultiTooltips
X-Git-Tag: v1.0.1-beta.2~6^2
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=refs%2Fpull%2F413%2Fhead;p=thirdparty%2FChart.js.git

Prevent spare datasets from breaking MultiTooltips
---

diff --git a/src/Chart.Core.js b/src/Chart.Core.js
index fbec59c30..0bd5da268 100755
--- a/src/Chart.Core.js
+++ b/src/Chart.Core.js
@@ -873,7 +873,9 @@
 								yMin;
 							helpers.each(this.datasets, function(dataset){
 								dataCollection = dataset.points || dataset.bars || dataset.segments;
-								Elements.push(dataCollection[dataIndex]);
+								if (dataCollection[dataIndex]){
+									Elements.push(dataCollection[dataIndex]);
+								}
 							});
 
 							helpers.each(Elements, function(element) {