(Note: I am aware that the standard way is to use Some::Class->new, but a static function (should?) work

First I do require, as use allows them both to work for some reason (why?):

require Net::Curl; Then, the following (assume I have use strict) fails with Bareword "Net::Curl::Easy::new" not allowed while "strict subs" in use 
my $c = Net::Curl::Easy::new;

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while the following does not 
my $c = Net::Curl::Easy->new;

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Also weird is that if I enter 

require Net::Curl;
my $c = Net::Curl::Easy::new;

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in Reply it works (as two commands). But if I entered the commands on the same line: require Net::Curl;my $c = Net::Curl::Easy::new; it fails (why?).

In addition, I'm not quite understanding the difference(s) between all these (note the command clearly isn't a reference, but just for the sake of argument). Which ones are the same, which ones are different (in general), which ones are the same in this case?: 

&Net::Curl::Easy::new;
&Net::Curl::Easy::new();
Net::Curl::Easy::new();
Net::Curl::Easy::new;
&{Net::Curl::Easy::new}; #equivalent to Net::Curl::Easy::new->&*,right
+?
Net::Curl::Easy::new->();

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EDIT Not using the strict pragma gives the error: 'easy' is not a Net::Curl::Easy object at the line assigning $c. I thought parentheses aren't necessary here (perldoc/perlsub):

The & is optional in modern Perl, as are parentheses if the subroutine has been predeclared.

In reply to Why does Net::Curl::Easy->new work but Net::Curl::Easy::new does NOT? by YenForYang

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