My Perl Wishlist: Invariant Sigils (Part 1)
The change I would most like to see in Perl 5, and why it might not happen
Display beautiful Perl code in HTML without JavaScript
PPI::Prettify makes pretty-printing Perl code as HTML easy
Read it
Banish unsightly variable assignments with Method::Signatures
Add subroutine signatures to Perl
Read it
Dynamic variable names with a dereferencing block
Perl is remarkably flexible and allows you to achieve all kinds of wizardry with the language. One example of this is using a dereferencing block to use a scalar value as a variable name. This allows you to use variables with dynamic names.
Read it
The conditional (ternary) operator
One way to reduce the verbosity of Perl code is to replace if-else statements with a conditional operator expression. The conditional operator (aka ternary operator) takes the form: logical test ? value if true : value if false.
Read it
List shortcuts: qw the quote whitespace operator
A popular way to build a list of literal quotes in Perl is to use the quote whitespace operator (qw). It’s terse, versatile and elegant. To see why, let’s look at a typical statement using a list of strings:
Read it
Perl arrays 101 - create, loop and manipulate
Arrays in Perl contain an ordered list of values that can be accessed using built-in functions. They are one of the most useful data structures and frequently used in Perl programming.
Read it
Upgrade your list printing using field separator variables
A typical way to print every element of an array in Perl is using a foreach loop:
Read it
Perl string functions - concatenate substring and split
Perl has many string functions, let’s take a look at a some of the most common ones: concatenate, substring and split.
Read it
Find the index of the last element in an array
Most Perl programmers know that to find the size of an array, the array must called in a scalar context like this:
Read it
New Features of Perl 5.14: Non-destructive Substitution
Perl 5.14 adds non-destructive substitution.
