Arcade: Show names as labels if a condition is met

[Ed_]

Based on the dummy data below how can I show only those values under `C1` as labels when let's say values of `C2` are greater than 40?

Sample data:

C1	C2
A	20
B	0
C	60
D	40
E	70
F	35
G	80
H	90
I	15

[KenBuja · Accepted solution]

You can use this Expression

if ($feature.C2 > 40) return $feature.C1

[Ed_]

Hi @KenBuja nice to hear from you, hope all is well, thank you for the super quick response 🙂. So I don't have to setup a variable first?

[KenBuja]

No, this shows the results of the one-line code. The two highlighted points show the Data field above and below 40

 

[Ed_]

Oh that's neat and super concise wish I could accept two answers lol 

[KenBuja · Accepted solution]

You can accept more than one answer!

[AlfredBaldenweck]

if ($feature.C2 > 40){
    var lab = $feature.C1
} else {
    var lab = Null
}
return lab

The points are labelled with both C1 and C2 in red, and then this expression is for the black text.

[Ed_]

Hi @AlfredBaldenweck thank you for quick response, so in your code lab =  C1 then how come both C1 and C2 are being returned on the map?

[AlfredBaldenweck]

That's in a different label class for demonstration. The black text is what's being returned by this expression.

[ZachBodenner · Accepted solution]

Without too much trouble, actually! Depending on your environment, the actual locations of where you'd create the Arcade expression may change, but the basic formula is something like this:

var label = $feature.C1
var qual = $feature.C2

if (qual > 40){
return label}
else {
return
}