mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-14 20:37:55 -05:00
30 lines
826 B
Markdown
30 lines
826 B
Markdown
---
|
|
title: fmt.Warnf
|
|
linkTitle: warnf
|
|
description: Log a WARNING from a template.
|
|
categories: [functions]
|
|
keywords: []
|
|
menu:
|
|
docs:
|
|
parent: functions
|
|
function:
|
|
aliases: [warnf]
|
|
returnType: string
|
|
signatures: ['fmt.Warnf FORMAT [INPUT]']
|
|
relatedFunctions:
|
|
- fmt.Errorf
|
|
- fmt.Erroridf
|
|
- fmt.Warnf
|
|
aliases: [/functions/warnf]
|
|
---
|
|
|
|
The documentation for [Go's fmt package] describes the structure and content of the format string.
|
|
|
|
Like the [`printf`] function, the `warnf` function evaluates the format string. It then prints the result to the WARNING log. Hugo prints each unique message once to avoid flooding the log with duplicate warnings.
|
|
|
|
```go-html-template
|
|
{{ warnf "Copyright notice missing from site configuration" }}
|
|
```
|
|
|
|
[`printf`]: /functions/fmt/printf
|
|
[Go's fmt package]: https://pkg.go.dev/fmt
|