From e11bc587eaa871df3f93e97d141353ecd30ffa08 Mon Sep 17 00:00:00 2001
From: Kai Volland <volland@terrestris.de>
Date: Wed, 18 May 2022 10:51:27 +0200
Subject: [PATCH] fix: fix check in ZoomButton

---
 src/Button/ZoomButton/ZoomButton.tsx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Button/ZoomButton/ZoomButton.tsx b/src/Button/ZoomButton/ZoomButton.tsx
index 58f806a899..d57ea7da15 100644
--- a/src/Button/ZoomButton/ZoomButton.tsx
+++ b/src/Button/ZoomButton/ZoomButton.tsx
@@ -6,6 +6,7 @@ import { easeOut } from 'ol/easing';
 import SimpleButton, { SimpleButtonProps } from '../SimpleButton/SimpleButton';
 import { CSS_PREFIX } from '../../constants';
 import { AnimationOptions as OlViewAnimationOptions } from 'ol/View';
+import _isNumber from 'lodash/isNumber';
 
 interface OwnProps {
   /**
@@ -82,7 +83,7 @@ class ZoomButton extends React.Component<ZoomButtonProps> {
       view.cancelAnimations();
     }
     const currentZoom = view.getZoom();
-    if (!currentZoom) {
+    if (!_isNumber(currentZoom)) {
       return;
     }
     const zoom = currentZoom + delta;