Adding a Sorting Feature to the Blog to Sort Posts by Date

The Approach

1. Walk through all the md files in the posts directory and grab each file's creation time and filename.
2. Sort by creation time to get the ordered blog list.

The Implementation

Sort the fetched allPosts by date.
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const allPosts = await getCollection("blog");
allPosts.sort((a, b) => b.data.pubDate.getTime() - a.data.pubDate.getTime());