The curious thing is that the test in the grep:

  return grep { $self->level( $level ) } $self->channels;

[download]
contains nothing that depends on whatever $self->channels is or returns. It could equally be written:
  return $self->level($level) ? $self->channels : () ;

[download]
but that doesn't answer the question of why $self->channels appears to be missing.

In reply to Re^2: I don't understand this grep by gone2015
in thread I don't understand this grep by gwhite

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