Custom X axis value formatting does not work

[flyingmutant]

When attempting to use an example from https://github.com/leeoniya/uPlot/tree/master/docs#axis--grid-opts, adding

      // [0]:   minimum num secs in found axis split (tick incr)
      // [1]:   default tick format
      // [2-7]: rollover tick formats
      // [8]:   mode: 0: replace [1] -> [2-7], 1: concat [1] + [2-7]
      values: [
      // tick incr          default           year                             month    day                        hour     min                sec       mode
        [3600 * 24 * 365,   "{YYYY}",         null,                            null,    null,                      null,    null,              null,        1],
        [3600 * 24 * 28,    "{MMM}",          "\n{YYYY}",                      null,    null,                      null,    null,              null,        1],
        [3600 * 24,         "{M}/{D}",        "\n{YYYY}",                      null,    null,                      null,    null,              null,        1],
        [3600,              "{h}{aa}",        "\n{M}/{D}/{YY}",                null,    "\n{M}/{D}",               null,    null,              null,        1],
        [60,                "{h}:{mm}{aa}",   "\n{M}/{D}/{YY}",                null,    "\n{M}/{D}",               null,    null,              null,        1],
        [1,                 ":{ss}",          "\n{M}/{D}/{YY} {h}:{mm}{aa}",   null,    "\n{M}/{D} {h}:{mm}{aa}",  null,    "\n{h}:{mm}{aa}",  null,        1],
        [0.001,             ":{ss}.{fff}",    "\n{M}/{D}/{YY} {h}:{mm}{aa}",   null,    "\n{M}/{D} {h}:{mm}{aa}",  null,    "\n{h}:{mm}{aa}",  null,        1],
      ],

to e.g. demos/sine-stream.html results in

Uncaught TypeError: parts[i] is not a function
    at uPlot.iife.js:705
    at uPlot.iife.js:1001
    at Array.map (<anonymous>)
    at Object.values (uPlot.iife.js:974)
    at uPlot.iife.js:3489
    at Array.forEach (<anonymous>)
    at axesCalc (uPlot.iife.js:3444)
    at convergeSize (uPlot.iife.js:2596)
    at _commit (uPlot.iife.js:3703)

[leeoniya]

i cannot repro this. can you make a failing jsfiddle?

[flyingmutant]

Sorry, my bad: I should have checked my example better. The issue was caused by occurrence of invalid format string ({hh}) inside values. Thank you for the quick response!