From ce6d7bd55cd43832764778b27b4c32fe24fd34ef Mon Sep 17 00:00:00 2001
From: mike-000 <49240900+mike-000@users.noreply.github.com>
Date: Sat, 29 Feb 2020 10:12:48 +0000
Subject: [PATCH] Fix "Cannot read property 'anchor' of undefined"

replace unnecessary filter with for loop and break
---
 src/ol/View.js | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/ol/View.js b/src/ol/View.js
index 8a8234c354..9b5211fdf1 100644
--- a/src/ol/View.js
+++ b/src/ol/View.js
@@ -610,11 +610,12 @@ class View extends BaseObject {
         animationCallback(series[0].callback, false);
       }
       if (!anchor) {
-        const animations = series.filter(function(animation) {
-          return !animation.complete;
-        });
-        if (animations.length > 0) {
-          anchor = animations[0].anchor;
+        for (let j = 0, jj = series.length; j < jj; ++j) {
+          const animation = series[j];
+          if (!animation.complete) {
+            anchor = animation.anchor;
+            break;
+          }
         }
       }
     }