mirror of
https://github.com/gohugoio/hugo.git
synced 2024-12-28 10:03:06 +00:00
44 lines
987 B
Markdown
44 lines
987 B
Markdown
---
|
|
title: Data inspection
|
|
linkTitle: Inspection
|
|
description: Use template functions to inspect values and data structures.
|
|
categories: [troubleshooting]
|
|
keywords: []
|
|
menu:
|
|
docs:
|
|
parent: troubleshooting
|
|
weight: 40
|
|
weight: 40
|
|
---
|
|
|
|
Use the [`debug.Dump`] function to inspect a data structure:
|
|
|
|
```go-html-template
|
|
<pre>{{ debug.Dump .Params }}</pre>
|
|
```
|
|
|
|
```text
|
|
{
|
|
"date": "2023-11-10T15:10:42-08:00",
|
|
"draft": false,
|
|
"iscjklanguage": false,
|
|
"lastmod": "2023-11-10T15:10:42-08:00",
|
|
"publishdate": "2023-11-10T15:10:42-08:00",
|
|
"tags": [
|
|
"foo",
|
|
"bar"
|
|
],
|
|
"title": "My first post"
|
|
}
|
|
```
|
|
|
|
Use the [`printf`] function (render) or [`warnf`] function (log to console) to inspect simple data structures. The layout string below displays both value and data type.
|
|
|
|
```go-html-template
|
|
{{ $value := 42 }}
|
|
{{ printf "%[1]v (%[1]T)" $value }} → 42 (int)
|
|
```
|
|
|
|
[`debug.Dump`]: /functions/debug/dump/
|
|
[`printf`]: /functions/fmt/printf/
|
|
[`warnf`]: /functions/fmt/warnf/
|