What are best practices for working with Perl array performance?

Discover the best practices for optimizing array performance in Perl, ensuring efficient data handling and minimal resource usage.

Perl, array performance, best practices, data handling, optimization

# Example of efficient array handling in Perl

# Using array slicing for better performance
my @array = (1 .. 100000);
my @slice = @array[0 .. 9]; # Fetches the first 10 elements efficiently

# Pre-allocating array size to avoid dynamic resizing
my @large_array;
$#large_array = 99999; # Allocating space for 100,000 elements

# Using push and pop for stack operations
push @large_array, 1; # Add an element
my $last_element = pop @large_array; # Remove the last element

# Using map for transformations
my @squared = map { $_ ** 2 } @array; # Squares each element

# Avoiding deep copies with references
my $array_ref = \@array; # Using a reference instead of copying the whole array

Perl array performance best practices data handling optimization