ISNUMBER equivalent in Arcade

[katshier]

I'm wanting to recreate the below excel formula for labelling in a feature layer in Portal for ArcGIS v10.5.1. Is this possible using Arcade? I haven't found any similar functions to ISNUMBER?

=IF(ISNUMBER(FIND("-",C3)),RIGHT(C3,LEN(C3)-(FIND("-",C3)+1)),C3)

[XanderBakker]

You can use a combination of several functions in Arcade like shown below:

var txt = "abc-123.5def";
var exceptions = ["-", "."];
// Console(Number(txt));
var keep = "";
for (var i = 0; i < Count(txt); i++) { 
    var a = Mid(txt, i, 1);
    // Console(i + ": " + a);
    if (IndexOf(exceptions, a) != -1) {
        keep += a;
        // Console(" - Keep (1):" + a);
    } else if (IsNan(Number(a)) == False) {
        keep += a;
        // Console(" - Keep (2):" + a);
    } else {
        // Console(" - Eliminating:" + a);
    }
}

return Number(keep);‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Obviously, this will fail completely in case you have something like "a-3bcd-65.32efd0.2". So, maybe you can provide some examples of what you have as input and what you are trying to obtain.

[katshier]

Thanks Xander, here's an example of the type of data we have. Each item has an id e.g XX05 or a name or both. Ideally we would want only the name where available but if there's no name then the id will be used.

Input	Output
XX00 - Test	Test
XX02 - Test Avenue	Test Avenue
XXXA056 - Test Road	Test Road
Test Street	Test Street
XX56	XX56

[XanderBakker · Accepted solution]

Based on the test values you provided, the following expression will do:

var input = "XX00 - Test" // "XX02 - Test Avenue", "XXXA056 - Test Road", "Test Street", "XX56"
var array = Split(input, "-");
if (Count(array) == 2) {
    return Trim(array[1]);
} else {
    return Trim(array[0]);
}
‍‍‍‍‍‍‍

Obviously on line 1 you should point to the correct attribute using $feature.NameOfField

Please test and see if the cases you provided describe all the situations that might occur in the data.

[katshier]

That works well for the examples I provided, thanks Xander. I did notice some records have a double hyphen for example: XX000 - Test Avenue-Test District for those I would want everything after the first  ' - ' so I used a concatenate which seems to do the trick unless you have a more sophisticated way of doing this?

var input = $feature.name 
var array = Split(input, "-");
if (Count(array) == 2) {
    return Trim(array[1]);
} else if (Count(array) == 3) {
    return Concatenate(array[1],'-',array[2])
} 
else {
    return Trim(array[0]);
}
‍‍‍‍‍‍‍‍‍‍

[XanderBakker]

Just in case you could have situations with more than 3 elements when you split you text, you could do something like this:

var input = "XX000 - Test Avenue-Test District-Test"; // $feature.name;
var array = Split(input, "-");
if (Count(array) == 2) {
    return Trim(array[1]);
} else if (Count(array) > 2) {
    var array2 = [];
    for (var i in array) {
        var part = Trim(array[i]);
        if (i > 0) {
            array2[Count(array2)] = part;
        }
    }
    return Concatenate(array2,'-');
} 
else {
    return Trim(array[0]);
}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

This will create another array (array2) with all the elements but not the first one and than Concatenate that array with a dash.