Re: Perl Idioms Explained - ${\$obj->method} and @{[sort @list]}

[Juerd]

It's important to know that simple string concatenation is more efficient, and often much easier to read.

"method result   - ${ \$obj->method }\n";

"method result   - " . $obj->method . "\n";

An explicit join on space or $" is more efficient than using @{[]}.

"foo @{[ some_list() ]}.";

"foo ${\ join $", some_list() }";

"foo ${\ join ' ', some_list() }";

"foo " . join ' ', some_list();

Easiest to read imho is (s)printf.

printf "method result  - %s\n", $obj->method;

The idiom is also explained in perlfaq4's How do I expand function calls in a string?.

Juerd # { site => 'juerd.nl', plp_site => 'plp.juerd.nl', do_not_use => 'spamtrap' }