rangeSliderLabelsBuilder function
A FastRangeSliderLabelsBuilder that is used as the default FastRangeSlider.labelsBuilder.
Returns RangeLabels by converting RangeValues.start and RangeValues.end of the current FastRangeSliderState.value to a String.
Implementation
RangeLabels rangeSliderLabelsBuilder(FastRangeSliderState field) {
final FastRangeSliderState(:value!) = field;
return RangeLabels(
value.start.toStringAsFixed(0),
value.end.toStringAsFixed(0),
);
}