From 5f4a6d7941a3b0a7a69e6e2dcb0f7551c969bbe8 Mon Sep 17 00:00:00 2001
From: John Huddleston <huddlej@gmail.com>
Date: Fri, 6 Mar 2020 13:16:02 -0800
Subject: [PATCH] Only truncate legend labels if they are strings

Fixes a bug where the tree legend could not be displayed for numeric color by
values because those values do not have a substring function.

Closes #926.
---
 src/components/tree/legend/item.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/tree/legend/item.js b/src/components/tree/legend/item.js
index 3b0dd20e7..3bd50ce95 100644
--- a/src/components/tree/legend/item.js
+++ b/src/components/tree/legend/item.js
@@ -35,7 +35,7 @@ const LegendItem = ({
       style={{fontSize: 12, fill: darkGrey, fontFamily: dataFont}}
     >
       <title>{label}</title>
-      {label.substring(0, legendMaxLength)}
+      {typeof label === 'string' ? label.substring(0, legendMaxLength) : label}
     </text>
   </g>
 );