committable6

query

all say (0 .. NaN)[^10]; say (NaN .. 0).reverse[^10];

result

¦«2014.01,2014.02,2014.03.01,2014.04,2014.05,2014.06,2014.07,2014.08,
  2014.09,2014.10,2014.11,2014.12,2015.01.1,2015.02,2015.03,2015.04,
  2015.05,2015.06,2015.07.2»:
0 1 2 3 4 5 6 7 8 9
«timed out after 10 seconds» «exit signal = SIGHUP (1)»
¦«2015.09,2015.10,2015.11»:
«timed out after 10 seconds» «exit signal = SIGHUP (1)»
¦«2015.12,2016.01.1,2016.02,2016.03,2016.04,2016.05,2016.06,2016.07.1,
  2016.08.1,2016.09,2016.10,2016.11,2016.12,2017.01,2017.02,2017.03,
  2017.04.3,2017.05,2017.06,2017.07,2017.08,2017.09,2017.10,2017.11,
  2017.12,2018.01,2018.02.1,2018.03,2018.04.1,2018.05,2018.06,2018.08,
  2018.09,2018.10,2018.11,2018.12,2019.03.1,2019.07.1,2019.11,2020.01,
  2020.02.1,HEAD(30e7a67)»:
(0 1 2 3 4 5 6 7 8 9)
(Nil Nil Nil Nil Nil Nil Nil Nil Nil Nil)