Arduino Reference - StringToUpperCase

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String

## toUpperCase()

#### Description

Get an upper-case version of a String. As of 1.0, toUpperCase() modifies the string in place rather than returning a new one.

#### Syntax

string.toUpperCase()

#### Parameters

string: a variable of type String

#### Returns

none

#### Example

- StringCaseChanges

#### See also

- toLowerCase()

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