toupper()
Learn how to use the toupper() function to convert a string to upper case.
Converts a string to upper case.
Syntax
toupper(value)
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| value | string | ✔️ | The value to convert to an uppercase string. |
Returns
If conversion is successful, result is an uppercase string.
If conversion isn’t successful, result is null.
Example
toupper("hello") == "HELLO"
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