How to run an anonymous function in Perl?

Question

(sub {
print 1;
})();



sub {
print 1;
}();

I tried various ways, all are wrong...

Answer 1

(sub { ... }) will give you the pointer to the function so you must call by reference.

(sub { print "Hello world\n" })->();

The other easy method, as pointed out by Blagovest Buyukliev would be to dereference the function pointer and call that using the { } operators

&{ sub { print "Hello World" }}();