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Merge commit '35dec7c96f7ee3eb17dd444f7067f0c776fb56ae'
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@@ -1,26 +1,21 @@
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---
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title: fmt.Errorf
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linkTitle: errorf
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description: Log an ERROR from a template.
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categories: [functions]
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categories: []
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keywords: []
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menu:
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docs:
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parent: functions
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function:
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action:
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aliases: [errorf]
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related:
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- functions/fmt/Erroridf
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- functions/fmt/Warnf
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returnType: string
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signatures: ['fmt.Errorf FORMAT [INPUT]']
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relatedFunctions:
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- fmt.Errorf
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- fmt.Erroridf
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- fmt.Warnf
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aliases: [/functions/errorf]
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---
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The documentation for [Go's fmt package] describes the structure and content of the format string.
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{{% include "functions/fmt/_common/fmt-layout.md" %}}
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Like the [`printf`] function, the `errorf` function evaluates the format string. It then prints the result to the ERROR log and fails the build. Hugo prints each unique message once to avoid flooding the log with duplicate errors.
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The `errorf` function evaluates the format string, then prints the result to the ERROR log and fails the build.
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```go-html-template
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{{ errorf "The %q shortcode requires a src parameter. See %s" .Name .Position }}
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@@ -29,5 +24,3 @@ Like the [`printf`] function, the `errorf` function evaluates the format string
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Use the [`erroridf`] function to allow optional suppression of specific errors.
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[`erroridf`]: /functions/fmt/erroridf
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[`printf`]: /functions/fmt/printf
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[Go's fmt package]: https://pkg.go.dev/fmt
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