hugo/docs/content/templates/debugging.md
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---
aliases:
- /doc/debugging/
- /layout/debugging/
lastmod: 2015-05-25
date: 2015-05-22
linktitle: Debugging
menu:
main:
parent: layout
prev: /templates/404
title: Template Debugging
weight: 110
---
# Template Debugging
Here are some snippets you can add to your template to answer some common questions.
These snippets use the `printf` function available in all Go templates. This function is
an alias to the Go function, [fmt.Printf](http://golang.org/pkg/fmt/).
### What type of page is this?
Does Hugo consider this page to be a "Node" or a "Page"? (Put this snippet at
the top level of your template. Don't use it inside of a `range` loop.)
{{ printf "%T" . }}
### What variables are available in this context?
You can use the template syntax, `$.`, to get the top-level template context
from anywhere in your template. This will print out all the values under, `.Site`.
{{ printf "%#v" $.Site }}
This will print out the value of `.Permalink`, which is available on both Nodes
and Pages.
{{ printf "%#v" .Permalink }}
This will print out a list of all the variables scoped to the current context
(a.k.a. The dot, "`.`").
{{ printf "%#v" . }}
When writing a [Homepage](/templates/homepage), what does one of the pages
you're looping through look like?
```
{{ range .Data.Pages }}
{{/* The context, ".", is now a Page */}}
{{ printf "%#v" . }}
{{ end }}
```