Frontmatterjs – Nextra

This is an example of how to write a frontmatter in JavaScript in a MDX file.

This is the whole file:

---js
{
 a : 1+3,
 b : 2
}
---
import { frontmatter} from '@/src/frontmatter'
 
{ JSON.stringify(frontmatter()) }
 
This is content

{"a":4,"b":2}

This is content