X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;ds=sidebyside;f=dygraph.js;h=5cfe2f424e0ce7af87ab1b45c696dab168b119aa;hb=e1fb3740f1d27bbbb67fbf72e831a3b57bb20d91;hp=1f36f1c56e9d7bec4c97b1ea8241b11e42b50dc3;hpb=c2909c73e4f5b8acc7881ca51ce3ece7dbe4ed3e;p=dygraphs.git

diff --git a/dygraph.js b/dygraph.js
index 1f36f1c..5cfe2f4 100644
--- a/dygraph.js
+++ b/dygraph.js
@@ -1214,23 +1214,22 @@ Dygraph.prototype.mouseMove_ = function(event) {
 };
 
 /**
- * Transforms layout_.points index into data row number
+ * Transforms layout_.points index into data row number.
  * @param int layout_.points index
- * @return int row number
+ * @return int row number, or -1 if none could be found.
  * @private
  */
 Dygraph.prototype.idxToRow_ = function(idx) {
-	if(idx<0)return -1;
-
-	for (var i in this.layout_.datasets) {
-		if (idx < this.layout_.datasets[i].length) {
-			return this.boundaryIds_[0][0]+idx;
-		}
-		idx-=this.layout_.datasets[i].length;
-	}
-	return -1;
-}
+  if (idx < 0) return -1;
 
+  for (var i in this.layout_.datasets) {
+    if (idx < this.layout_.datasets[i].length) {
+      return this.boundaryIds_[0][0]+idx;
+    }
+    idx -= this.layout_.datasets[i].length;
+  }
+  return -1;
+};
 
 /**
  * Draw dots over the selectied points in the data series. This function