... since each splice needs to copy all the elements from $i to the end of the array.

Is that so? I always thought of splice being highly efficient, working "in-place", just "re-arranging elements", without need to copy anything. Can you ascertain your statement?

--shmem 

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re^2: Remove array elements dynamically! by shmem
in thread Remove array elements dynamically! by newbio

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