After many years of using Perl, I still don't always remember the order of arguments to substr or splice, but what I
can do is type
perldoc -f splice at lighting speed...
Point being, one way to get good at Perl is to know where all the documentation is. Having read or at least skimmed all of the documentation of Perl, a few books, and many CPAN modules at one point or another, I know what tools are available and where to look when I need something.
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