Perl | length() Function

length() function in Perl finds length (number of characters) of a given string, or $_ if not specified.

Syntax:length(VAR)

Parameter:
VAR: String or a group of strings whose length is to be calculated
Return:
Returns the size of the string.

Example 1:

#!/usr/bin/perl

# String whose length is to be calculated
$orignal_string = "Geeks for Geeks";

# Function to calculate length
$string_len = length($orignal_string);

# Printing the Length
print "Length of String is: $string_len";

Output:

Length of String is: 15

Example 2:

#!/usr/bin/perl

# String whose length is to be calculated
$orignal_string = "123456 is Geeks Code";

# Function to calculate length
$string_len = length($orignal_string);

# Printing the Length
print "Length of String is: $string_len";

Output:

Length of String is: 20

Note : Scalar context on an array or hash is used if the corresponding size is to be determined.