Be safer with entities in templates

lovelace/button_card_templates/v3/v3_badge_humidity.yaml

@@ -1,3 +1,3 @@
 v3_badge_humidity:
   template: v3_badge
-  state_display: "[[[ return Number.parseFloat(entity.state.split(' ')[0]).toFixed(1) + '%' ]]]"
+  state_display: "[[[ return Number.parseFloat(entity?.state.split(' ')[0]).toFixed(1) + '%' ]]]"

lovelace/button_card_templates/v3/v3_badge_temp.yaml

@@ -1,3 +1,3 @@
 v3_badge_temp:
   template: v3_badge
-  state_display: "[[[ return Number.parseFloat(entity.state.split(' ')[0]).toFixed(1) + '°' ]]]"
+  state_display: "[[[ return Number.parseFloat(entity?.state.split(' ')[0]).toFixed(1) + '°' ]]]"

lovelace/button_card_templates/v3/v3_button_ac.yaml

@@ -10,9 +10,9 @@ v3_button_ac:
       if (entity.state === "off") {
         return "Off";
       }
-      return entity.attributes.hvac_action.charAt(0).toUpperCase() +
-        entity.attributes.hvac_action.slice(1) + ' to ' +
-        entity.attributes.temperature + '°';
+      return entity.attributes?.hvac_action?.charAt(0).toUpperCase() +
+        entity.attributes?.hvac_action?.slice(1) + ' to ' +
+        entity.attributes?.temperature + '°';
     ]]]
   state:
     - value: 'off'

lovelace/button_card_templates/v3/v3_button_cover.yaml

@@ -2,6 +2,6 @@ v3_button_cover:
   template: [v3_button, cover]
   state_display: |
     [[[
-      if (entity.state === 'closed') { return 'Closed' }
-      return entity.attributes.current_position + '% Open';
+      if (entity?.state === 'closed') { return 'Closed' }
+      return entity?.attributes?.current_position + '% Open';
     ]]]

lovelace/button_card_templates/v3/v3_button_light.yaml

@@ -2,6 +2,6 @@ v3_button_light:
   template: v3_button
   state_display: |
     [[[
-      if (entity.state === 'off') { return 'Off'; }
-      return Math.round(entity.attributes.brightness * 100 / 255) + "%";
+      if (entity?.state === 'off') { return 'Off'; }
+      return Math.round(entity?.attributes?.brightness * 100 / 255) + "%";
     ]]]

lovelace/button_card_templates/v3/v3_button_power.yaml

@@ -4,7 +4,7 @@ v3_button_power:
     power_sensor:
   state_display: |
     [[[
-      if (entity.state === 'off') return 'Off';
+      if (entity?.state === 'off') return 'Off';
       return states[variables.power_sensor].state + " W";
     ]]]
   icon: mdi:power-socket

lovelace/button_card_templates/v3/v3_button_purifier.yaml

@@ -2,9 +2,9 @@ v3_button_purifier:
   template: v3_button
   state_display: |
     [[[
-      if (entity.state === 'off') { return 'Off'; }
-      if (!entity.attributes.preset_mode) { return 'Unknown preset'; }
-      return entity.attributes.preset_mode.charAt(0).toUpperCase() + entity.attributes.preset_mode.slice(1);
+      if (entity?.state === 'off') { return 'Off'; }
+      if (!entity?.attributes.preset_mode) { return 'Unknown preset'; }
+      return entity?.attributes?.preset_mode.charAt(0).toUpperCase() + entity?.attributes?.preset_mode.slice(1);
     ]]]
   variables:
     value_has_error: |

lovelace/button_card_templates/v3/v3_button_radiator.yaml

@@ -3,10 +3,10 @@ v3_button_radiator:
   icon: mdi:radiator
   state_display: |
     [[[
-      if (entity.state === 'off') { return 'Off'};
-      return entity.state.charAt(0).toUpperCase() +
-        entity.state.slice(1) + " to " +
-        entity.attributes.temperature + '°';
+      if (entity?.state === 'off') { return 'Off'};
+      return entity?.state.charAt(0).toUpperCase() +
+        entity?.state.slice(1) + " to " +
+        entity?.attributes?.temperature + '°';
     ]]]
   tap_action:
     action: call-service