Great work by both of you, and the possible syntax tricks nicely show TIMTOWTDI, but the original motive for trying LIST += LIST was a hoped-for performance gain from the interpreter completing the whole set in one opcode, instead of add...add...add....

I suspect that overloaded objects like this will cause problems if used in inner loops. :-) Neat tricks, though...

In reply to Re^4: A list assignment gotcha (Updated) by jcb
in thread Not understanding 2 sentences in perldoc by Anonymous Monk

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