Added site functions

src/lib/content/dates.ts

@@ -0,0 +1,5 @@
+export function parseDate(value: string | null): Date | null {
+  if (!value) return null
+  const date = new Date(/(z|[+-]\d\d:\d\d)$/i.test(value) ? value : `${value}Z`)
+  return Number.isNaN(date.getTime()) ? null : date
+}

src/lib/content/types.ts

@@ -10,7 +10,7 @@ export type ArticleEntry = Entry<Collections['articles']>
 export type PageEntry = Entry<Collections['pages']>
 export type TagEntry = Entry<Collections['tags']>
 
-export interface Content {
+export type Content = {
   articles: Map<string, ArticleEntry>
   pages: Map<string, PageEntry>
   tags: Map<string, TagEntry>