The **`uc()` function** in Perl converts a string to uppercase. 

The following figure shows a visual representation of the `uc()` function.

#  
#     
## Syntax

```perl
uc(string)
```
## Parameter
The `uc()` function requires only one parameter: a string that is to be converted to uppercase.

> If the `string` parameter is omitted then it returns `$_`.

## Return value
The `uc()` function returns a string that is converted to uppercase.  


## Code
The following code illustrates how to use `uc()` function in Perl.






#String
print "uc('educative') : ".uc('educative'). "\n";

#String with number 
print "uc('educative09') : ".uc('educative09'). "\n";

#String is omitted
print "uc() : ".uc(). "\n";


#  
#     
## Syntax

```perl
uc(string)
```
## Parameter
The `uc()` function requires only one parameter: a string that is to be converted to uppercase.

> If the `string` parameter is omitted then it returns `＄_`.

## Return value
The `uc()` function returns a string that is converted to uppercase.  


## Code
The following code illustrates how to use `uc()` function in Perl.





What is the uc() function in Perl?

Converts a string to uppercase using the uc() function in Perl. Returns the uppercase string.