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39 lines
840 B
Markdown
39 lines
840 B
Markdown
---
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title: fmt.Printf
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description: Formats a string using the standard `fmt.Sprintf` function.
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categories: []
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keywords: []
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action:
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aliases: [printf]
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related:
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- functions/fmt/Print
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- functions/fmt/Println
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returnType: string
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signatures: ['fmt.Printf FORMAT [INPUT]']
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aliases: [/functions/printf]
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---
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{{% include "functions/fmt/_common/fmt-layout.md" %}}
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```go-html-template
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{{ $var := "world" }}
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{{ printf "Hello %s." $var }} → Hello world.
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```
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```go-html-template
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{{ $pi := 3.14159265 }}
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{{ printf "Pi is approximately %.2f." $pi }} → 3.14
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```
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Use the `printf` function with the `safeHTMLAttr` function:
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```go-html-template
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{{ $desc := "Eat at Joe's" }}
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<meta name="description" {{ printf "content=%q" $desc | safeHTMLAttr }}>
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```
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Hugo renders this to:
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```html
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<meta name="description" content="Eat at Joe's">
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```
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