Rocky Bernstein > Devel-Trepan-0.42 > Devel::Trepan::CmdProcessor::Command::Watch

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Source   Latest Release: Devel-Trepan-0.58

watch Perl-expression

Stop very time Perl-expression changes from its prior value.

Examples:

 watch $a  # enter debugger when the value of $a changes
 watch scalar(@ARGV))  # enter debugger if size of @ARGV changes.

See also delete, enable, and disable and info watch.

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