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23 lines
628 B
Markdown
23 lines
628 B
Markdown
---
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title: fmt.Warnf
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description: Log a WARNING from a template.
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categories: []
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keywords: []
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action:
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aliases: [warnf]
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related:
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- functions/fmt/Errorf
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- functions/fmt/Erroridf
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returnType: string
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signatures: ['fmt.Warnf FORMAT [INPUT]']
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aliases: [/functions/warnf]
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---
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{{% include "functions/fmt/_common/fmt-layout.md" %}}
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The `warnf` function evaluates the format string, then prints the result to the WARNING log. Hugo prints each unique message once to avoid flooding the log with duplicate warnings.
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```go-html-template
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{{ warnf "The %q shortcode was unable to find %s. See %s" .Name $file .Position }}
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```
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