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chore(docs): Add clarification for Pro Tip on Part 4 of tutorial #36918

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Nov 3, 2022
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chore(docs): Add clarification for Pro Tip on Part 4 of tutorial #36918

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Added Note for siteMetadata title in Head export
BreGoNunez Oct 30, 2022
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Update index.mdx
LekoArts Nov 3, 2022
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10 changes: 4 additions & 6 deletions docs/docs/tutorial/part-4/index.mdx
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Expand Up @@ -973,16 +973,14 @@ export default BlogPage

**Pro Tip:** The Gatsby Head API and its `Head` export also receives the `data` prop. This isn't directly obvious when using the component unless your IDE gives autocompletion or hints. If you're unsure how to use an API, head over to the [reference guides](/docs/reference) for instructions. There you'll find guides like [Gatsby Head API](/docs/reference/built-in-components/gatsby-head/).

When accessing `data` in `Head` it is the same data as in your page component:
As an example, let's say you queried the `title` from `siteMetadata` in your page query. You'll then be able to access that through the `data` prop in `Head` (as with page component):

```js
export const Head = ({ data }) => (
<>
<title>{data.site.siteMetadata.title}</title>
</>
)
export const Head = ({ data }) => <title>{data.site.siteMetadata.title}</title>
```

In [Part 6](/docs/tutorial/part-6/#render-post-contents-in-the-blog-post-page-template) you'll learn how to use this pattern, for now keep using the `<Seo />` component.

</Announcement>

4. Now, when you look at your blog page in a web browser, you should see a list with the filenames for each of your posts:
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