Help for this page

Select Code to Download

Select or download this

        use Time::HiRes 'time';
    
...
       ^a$|^b$|^c$|^d$|^e$|^f$: 0.443303
               ^(a|b|c|d|e|f)$: 0.031506
                   a|b|c|d|e|f: 0.043478

Select or download this

$rex = qr/my.STRING/is;
print $rex;                 # prints (?si-xm:my.STRING)
s/$rex/foo/;