From 669ed5cb2807dc73889ff56294fecb7a2483e6eb Mon Sep 17 00:00:00 2001
From: Bram Kragten <mail@bramkragten.nl>
Date: Thu, 12 Mar 2020 21:02:05 +0100
Subject: [PATCH] Dont create new array on every render (#5177)

---
 src/dialogs/more-info/controls/more-info-person.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/dialogs/more-info/controls/more-info-person.ts b/src/dialogs/more-info/controls/more-info-person.ts
index d4c2bb2e0c..153a0c797e 100644
--- a/src/dialogs/more-info/controls/more-info-person.ts
+++ b/src/dialogs/more-info/controls/more-info-person.ts
@@ -15,12 +15,15 @@ import "../../../components/map/ha-map";
 import { HomeAssistant } from "../../../types";
 import { showZoneEditor } from "../../../data/zone";
 import { fireEvent } from "../../../common/dom/fire_event";
+import memoizeOne from "memoize-one";
 
 @customElement("more-info-person")
 class MoreInfoPerson extends LitElement {
   @property() public hass!: HomeAssistant;
   @property() public stateObj?: HassEntity;
 
+  private _entityArray = memoizeOne((entityId: string) => [entityId]);
+
   protected render(): TemplateResult {
     if (!this.hass || !this.stateObj) {
       return html``;
@@ -35,7 +38,7 @@ class MoreInfoPerson extends LitElement {
         ? html`
             <ha-map
               .hass=${this.hass}
-              .entities=${[this.stateObj.entity_id]}
+              .entities=${this._entityArray(this.stateObj.entity_id)}
             ></ha-map>
           `
         : ""}