hugo/docs/content/en/functions/strings/ToUpper.md
2023-10-20 09:43:56 +02:00

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---
title: strings.ToUpper
linkTitle: upper
description: Converts all characters in a string to uppercase
categories: [functions]
keywords: []
menu:
docs:
parent: functions
function:
aliases: [upper]
returnType: string
signatures: [strings.ToUpper INPUT]
relatedFunctions:
- strings.FirstUpper
- strings.Title
- strings.ToLower
- strings.ToUpper
aliases: [/functions/upper]
---
Note that `upper` can be applied in your templates in more than one way:
```go-html-template
{{ upper "BatMan" }} → "BATMAN"
{{ "BatMan" | upper }} → "BATMAN"
```