improve

.vitepress/theme/PostLayout.vue

@@ -1,40 +1,29 @@
 <script setup lang="ts">
-// Import the 'useData' function from 'vitepress' to access frontmatter data
 import { useData } from 'vitepress'
-
-// Import the 'Authors' component to display the list of authors
 import Authors from './components/Authors.vue'
 
-// Define the props that this component accepts, including an array of authors
 const props = defineProps<{
-  authors: string[]
+  authors?: string[]
 }>()
 
-// Define a function to format the raw date string into a more readable format
 const formatDate = (raw: string): string => {
-  // Create a new Date object using the raw date string
   const date = new Date(raw)
-
-  // Return the formatted date string using the en-US locale and specifying
-  // the month and day in short and numeric formats, respectively
   return date.toLocaleDateString('en-US', {
     month: 'short',
     day: 'numeric'
   })
 }
 
-// Destructure the 'frontmatter' object from the data returned by the 'useData' function
 const { frontmatter } = useData()
 </script>
 
 <template>
-  <!-- Display the title from the frontmatter object -->
   <h1>{{ frontmatter.title }}</h1>
-
-  <!-- Display the description and formatted date from the frontmatter object -->
-  <div>{{ frontmatter.description }} • {{ formatDate(frontmatter.date) }}</div>
-
-  <!-- Render the 'Authors' component, passing in the array of authors as a prop -->
-  <Authors :authors="props.authors" />
+  <div>
+    {{ frontmatter.description }} •
+    <template v-if="frontmatter.date">
+      {{ formatDate(frontmatter.date) }}
+    </template>
+  </div>
+  <Authors v-if="props.authors" :authors="props.authors" />
 </template>
-