Create custom filters file

config/filters/index.js

@@ -0,0 +1,49 @@
+const siteData = require("../../src/_data/meta.js")
+const sass = require('sass')
+
+function toFullDate(value) {
+  const dateObject = new Date(value)
+
+  const dateParts = new Intl.DateTimeFormat(siteData.lang, {
+    year: "numeric",
+    day: "numeric",
+    month: "long",
+  }).formatToParts(dateObject)
+
+  const dayPart = dateParts.find((part) => part.type === "day").value
+  const monthPart = dateParts.find((part) => part.type === "month").value
+  const yearPart = dateParts.find((part) => part.type === "year").value
+
+  return `${monthPart} ${dayPart}, ${yearPart}`
+}
+
+function getMonthDay(value) {
+  const dateObject = new Date(value)
+
+  const month = new Intl.DateTimeFormat(siteData.lang, {
+    month: "long",
+  }).format(dateObject)
+
+  return `${dateObject.getDate()} ${month}`
+}
+
+function getYear(value) {
+  const dateObject = new Date(value)
+  return dateObject.getFullYear()
+}
+
+function getDatetime(value) {
+  return new Date(value).toISOString().split("T")[0]
+}
+
+function renderSass(file) {
+  return sass.renderSync({ file }).css.toString()
+}
+
+module.exports = {
+  getDatetime,
+  getMonthDay,
+  getYear,
+  toFullDate,
+  renderSass,
+}