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Re^2: Neat Debugger tricks

by QM (Parson)
on Nov 17, 2005 at 03:49 UTC ( #509275=note: print w/ replies, xml ) Need Help??

in reply to Re: Neat Debugger tricks
in thread Neat Debugger tricks

4. dump a data structure: use Data::Dumper; p Dumper($foo)
Unless you're just sweet on D::D, I prefer
x $foo
For hashes, this works better:
x \%foo

Quantum Mechanics: The dreams stuff is made of

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Re^3: Neat Debugger tricks
by harleypig (Monk) on Jun 07, 2007 at 19:18 UTC
    If the output from x (or p) is too long for your screen then prepend the pipe. The output will be piped through less (or whatever 'o pager' is set to) and you can scroll back and forth at your pleasure.
    harleypig@harleypig ~ $ perl -de 0 Loading DB routines from version 1.28 Editor support available. Enter h or `h h' for help, or `man perldebug' for more help. main::(-e:1): 0 DB<1> o pager? pager = '|/usr/bin/less' DB<2> |x \%::
    and the output is the same as 'x \%::' but in a less session.
    Harley J Pig

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