Extract table of contents

compile returns table-of-contents data directly on CompiledPage.toc. No DOM, React tree, or second Markdown pass is required.

import { compile } from 'foldocs-mdx'

const page = await compile(source, { filePath })

for (const item of page.toc) {
  console.log(item.depth, item.title, `#${item.id}`)
}

Only levels two through four are included. The page title remains the single primary heading and is rendered separately by the documentation layout.