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Using Page Data in a Layout

Often times you may need to use information from a page inside of a layout. A common usecase are javascript files particular to a page. You can use the page variable within any layout to access any data particular to a page.

Using the JavaScript example if you wanted to add scripts to a layout, the easiest thing to do would be to add the script URLs to the front_matter of the page:

page.md
---
title: My Page
scripts: [http://.../blah.js, http://.../bar.js]
---

Page content
_layouts/base.slim
...
  - page.front_matter.scripts.each do |url|
    script href=url

You may have other sections or variables on a page that you need, but this is the basics. If you need something in a page or layout, the easiest way to do this is to add it to the front-matter of the page.