These pages outline the chart configuration options, and the methods and properties of Highcharts objects.
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Datetime axis only. An array determining what time intervals the ticks are allowed to fall on. Each array item is an array where the first value is the time unit and the second value another array of allowed multiples.
Defaults to:
units: [[
'millisecond', // unit name
[1, 2, 5, 10, 20, 25, 50, 100, 200, 500] // allowed multiples
], [
'second',
[1, 2, 5, 10, 15, 30]
], [
'minute',
[1, 2, 5, 10, 15, 30]
], [
'hour',
[1, 2, 3, 4, 6, 8, 12]
], [
'day',
[1, 2]
], [
'week',
[1, 2]
], [
'month',
[1, 2, 3, 4, 6]
], [
'year',
null
]]