Re: Array Plus Operator

[shmem]

There's no difference between these two lines

@{ $self->bar || +[] };
@{ $self->bar ||  [] };

since there is no ambiguity. [] returns a scalar - a reference to an anonymous, empty array - in either case. But the original author perhaps thought it was needed. AFAIK this doesn't behave different in any perl5.

[SleepyJay]

That's what I assumed, but thanks for the sanity check! Odd looking legacy code gives me deep paranoia when changing it!

The current theory in the office is that someone "fat-fingered" it... since the "+" and "[" are so close on the keyboard... otherwise... NFI

Or maybe you could pass in a default to use if $self->bar was false... so it was originally @{ $self->bar || +shift } and then the code evolved and someone replaced the "shift" with "[]" and left the "+" around, JIC

[AnomalousMonk]

... someone "fat-fingered" it... since the "+" and "[" are so close on
+ the keyboard...

But "+" also requires a shift, so it would have to be a "hyper-caffeinated-fat-finger."