Best general purpose – Especially short arrays (1000 items or less) and coders that are unsure of what optimizations best suit their needs. # $value can be any regex. be safe if ( grep( /^$value$/, @array ) ) { print “found it”; } It has been mentioned that grep passes through all values even if … Read more
You can use the perl debugger on a trivial program, like so: perl -de1 Alternatively there’s Alexis Sukrieh‘s Perl Console application, but I haven’t used it.
Oh, I found it. You use last instead of break for my $entry (@array){ if ($string eq “text”){ last; } }
Perl has a syntax called “indirect method notation”. It allows Foo->new($bar) to be written as new Foo $bar So that means Syntax error ! exit 0; is the same as error->Syntax(! exit 0); or error->Syntax(!exit(0)); Not only is it valid syntax, it doesn’t result in a run-time error because the first thing executed is exit(0).
𝙎𝙞𝙢𝙥𝙡𝙚𝙨𝙩 ℞: 𝟕 𝘿𝙞𝙨𝙘𝙧𝙚𝙩𝙚 𝙍𝙚𝙘𝙤𝙢𝙢𝙚𝙣𝙙𝙖𝙩𝙞𝙤𝙣𝙨 Set your PERL_UNICODE envariable to AS. This makes all Perl scripts decode @ARGV as UTF‑8 strings, and sets the encoding of all three of stdin, stdout, and stderr to UTF‑8. Both these are global effects, not lexical ones. At the top of your source file (program, module, library, dohickey), prominently … Read more
Here is how to solve it on Mac OS X v10.7 (Lion) or Cygwin (Windows 10): Add the following lines to your bashrc or bash_profile file on the host machine: # Setting for the new UTF-8 terminal support in Lion export LC_CTYPE=en_US.UTF-8 export LC_ALL=en_US.UTF-8 If you are using Z shell (zsh), edit file zshrc: # Setting for … Read more