nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

labeling in Arcade

IngridAnneessens

I want to label my feature as follows:

when ADRESSTATUS = Gehistoreeerd -> No label
when BUSNUMMER = Null --> Huinummer
When BUSNUMMER is not NULL --> Huisnumer underlined

I keep getting an 'invalid expression'
Can anyone see what's wrong here? Is there a beter way tot do this?

LabelsHuisnummers.jpg

SimonSchtte_ct_0-1729674126271.png

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Accepted answers

JohannesLindner

tl;dr:

return When(
    Adresstatus == "Gehistoreerd", null,
    IsEmpty(Busnummer), Huisnummer,
    !IsEmpty(Busnummer), `<UND>${Huisnummer}</UND>`,
    "Default value"
    )

A few pointers:

return + something is not valid syntax. return something is. More info on return.
= is for assignment (this variable now has this value), == is for comparison (does this variable have this value?) More info on operators.
You can append multiple string values (what you tried with the <u>), but you have to actually make them strings using quotation marks, and you have to either add them ("<UND>" + Huisnummer + "</UND>") or use template literals, which I did above.
Label formatting tags are not the same as HTML tags.
For chained if-then blocks, you can use the When function.

All comments

ChristopherCounsell

You are missing a ')' at the end of line 5.

IngridAnneessens

I don't see where I have to put it:
if (!IsEmpty(Busnummer)) {return + Huisnummer};

JohannesLindner

tl;dr:

return When(
    Adresstatus == "Gehistoreerd", null,
    IsEmpty(Busnummer), Huisnummer,
    !IsEmpty(Busnummer), `<UND>${Huisnummer}</UND>`,
    "Default value"
    )

A few pointers:

return + something is not valid syntax. return something is. More info on return.
= is for assignment (this variable now has this value), == is for comparison (does this variable have this value?) More info on operators.
You can append multiple string values (what you tried with the <u>), but you have to actually make them strings using quotation marks, and you have to either add them ("<UND>" + Huisnummer + "</UND>") or use template literals, which I did above.
Label formatting tags are not the same as HTML tags.
For chained if-then blocks, you can use the When function.

IngridAnneessens

Thank you, Johannes!

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