The **`length()` function** in Perl is used to calculate the size of a string. 

The illustration below shows the visual representation of the `length()` function.

# 
## Syntax
```perl
length(string)
```
## Parameters
The `length()` function requires a `string` as a parameter.

## Return value
This function returns the size of a `string`.

> If the `string` parameter is omitted, then it returns `''`.

## Code


#string
print "length('Hello') : ".length('Hello'). "\n";

#string with number 
print "length('EDUCATIVE09') : ".length('EDUCATIVE09'). "\n";

#string is omitted
print "length() : ".length(). "\n";


What is string.length() in Perl?

The length() function in Perl calculates the size of a string, returning its length, or '' if no string is provided.