Complex types in Markdown front matters
If you use a static site generator, such as Jekyll, Hugo, or Next.js, you probably write a post in a Markdown file and include the post metadata in the file's first section, the front matter. It turns out that front matters are typically1 parsed as YAML, a language supporting more types than just strings:
--- # Example of a YAML front matter # Notice that YAML supports comments. title: "If there's a colon in the title: you need to escape it because of YAML" publish: true # you can use booleans... tags: # ...or arrays - yaml - markdown changelog: # ...or arrays of objects - date: 2020-04-19 # ...or dates msg: published first version - date: 2020-05-20 msg: added a code example --- Content of the page, in Markdown.
- Hugo supports also TOML or JSON for front matters.↩
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