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  • \$\begingroup\$ Careful, that ] will wrap the entire stack! I think functions should work regardless of the stack contents beneath the input, and you seem to agree ^^ \$\endgroup\$ Commented Dec 30, 2016 at 15:49
  • \$\begingroup\$ @Lynn whoops, forgot that I was using ] when I changed it to a function. \$\endgroup\$ Commented Dec 30, 2016 at 15:53
  • \$\begingroup\$ I think you could do [{)\z}h] and keep it a function, for 27 bytes. \$\endgroup\$ Commented Dec 30, 2016 at 16:37