These pages outline the chart configuration options, and the methods and properties of Highcharts objects.
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Formatter function to use instead of the default for point descriptions.
Receives one argument,
point, referring to the point to
describe. Should return a string with the description of the
point for a screen reader user. If
false is returned, the
default formatter will be used for that point.
Note: Prefer using accessibility.point.valueDescriptionFormat instead if possible, as default functionality such as describing annotations will be preserved.