frontmatter()

Membuat plugin frontmatter yang mengaktifkan parsing blok metadata YAML, TOML, atau JSON di bagian atas dokumen Markdown/MDX.

import { frontmatter } from "@unifast/node";

Signature

function frontmatter(options?: FrontmatterPluginOptions): UnifastPlugin

Parameter

options?

Konfigurasi untuk format frontmatter

Properti	Tipe	Default	Deskripsi
`yaml`	`boolean`	`true`	Mengaktifkan frontmatter YAML (delimiter —)
`toml`	`boolean`	`false`	Mengaktifkan frontmatter TOML (delimiter +++)
`json`	`boolean`	`false`	Mengaktifkan frontmatter JSON (delimiter ;;;)

Penggunaan

import { compile, frontmatter } from "@unifast/node";

const result = compile(md, {
  plugins: [
    frontmatter({
      yaml: true,
      toml: true,
      json: true,
    }),
  ],
});

console.log(result.frontmatter);
// { title: "My Page", date: "2024-01-01", tags: ["markdown", "docs"] }

Contoh

Frontmatter YAML

import { compile, frontmatter } from "@unifast/node";

const md = `---
title: My Page
date: 2024-01-01
tags:
  - markdown
  - docs
---

# Hello`;

const result = compile(md, { plugins: [frontmatter()] });

console.log(result.frontmatter);
// { title: "My Page", date: "2024-01-01", tags: ["markdown", "docs"] }

Frontmatter TOML

import { compile, frontmatter } from "@unifast/node";

const md = `+++
title = "My Page"
date = 2024-01-01
+++

# Hello`;

const result = compile(md, { plugins: [frontmatter({ toml: true })] });

console.log(result.frontmatter);
// { title: "My Page", date: "2024-01-01" }

Frontmatter JSON

import { compile, frontmatter } from "@unifast/node";

const md = `;;;
{"title": "My Page", "draft": false}
;;;

# Hello`;

const result = compile(md, { plugins: [frontmatter({ json: true })] });

console.log(result.frontmatter);
// { title: "My Page", draft: false }