---
title: "content.addListingFields()"
description: "Limit which frontmatter fields listings keep for the given extensions."
canonical_url: "https://content.comark.dev/reference/content/add-listing-fields"
---
# content.addListingFields()

> Limit which frontmatter fields listings keep for the given extensions.

## `content.addListingFields(extensions, fields)`

Limits which `data` (frontmatter) fields are kept on [`list()`](https://content.comark.dev/reference/content/list) / manifest entries for the given extensions, keeping listings small.

**Parameters:**

- `extensions`: an array of dotted extensions.
- `fields`: the `data` field names to keep.

**Returns:** `void`

## Usage

```ts [usage.ts]
content.addListingFields(['.md'], ['title', 'description'])
```


## Sitemap

See the full [sitemap](https://content.comark.dev/sitemap.md) for all pages.