Frontmatter is added as a header when creating a new Hugo file via hugo new file_name it has the following format:

---
title: "Frontmatter"
date: 2019-12-30T12:01:10+01:00
draft: true
---

1. It contains information about the file in key/value pairs.

2. Can be written in JSON TOML, YAML

   • toml is selected. Similar to yaml
   • json can be used but heavy

3. custom variables can be added, eg

   • author
   • language