Create fraction as label in Arcade

[TomGeo]

I would like to use Arcade to show z-min and z_max (both are attributes of the features) in a fraction.

To get both values as a multi-line label is easy, but then I am basically missing two things.

1. draw a horizontal line between the two values (ideally as wide as the longest value)
2. both attribute values are of type Double, and I would like to align the numbers by the decimal seperator

Is that possible with Arcade, and/or is there any other way to achieve that with ArcGIS Pro?

[KenBuja · Accepted solution]

I was able to get a horizontal line between the two that is the length of the longer value, but I couldn't get them aligned with the decimal point.

When using this script, you have to unselect the "Remove extra spaces" option.

var numerator = $feature.MIN;
var denominator = $feature.MAX;

var numLength = Count(Text(numerator));
var denLength = Count(Text(denominator));
if (numLength < denLength) {
  var diff = Ceil((denLength - numLength)/2);
  for (var j=0; j <= diff; j++) {
    numerator = ` ${numerator} `
  }
}
return `<align horizontal ='center'><UND>${numerator}</UND>${TextFormatting.NewLine}${denominator}</align>`

[TomGeo]

Thank you so much! I can see the issue with the alignment to the decimal point... Lucky enough it's not a strict requirement, but in terms of typography and cartography it would be nice if Arcade could support that.