Symbologie: Arcade-expressie voor datumbereik werkt niet

deleted-user-jxpbpbjlZInj

Ik wil een polygoonlaag weergeven met twee verschillende symbolen: rood als het gebied de afgelopen 30 dagen niet is onderzocht, en grijs als dat wel het geval is. Dit is de expressie die ik heb geschreven, maar de symbologie is helemaal rood! Geen verschil, ondanks de verschillende waarden in mijn velden:

var rightnow = now()
var lastedit = $feature.LastSurveyDate
var difference = (rightnow - lastedit)

If (difference >30) {
return "Dit is de afgelopen 30 dagen niet onderzocht"
}
else {
return "Dit is de afgelopen 30 dagen onderzocht"
}

HELP!

XanderBakker

Please be aware that "difference" is an existing function, which might be causing the problem. Could you try with a different variable name, like "days" for example?  

<SPAN class="keyword token">var</SPAN> days <SPAN class="operator token">=</SPAN> <SPAN class="token function">DateDiff</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="token function">Now</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> $feature<SPAN class="punctuation token">.</SPAN>LastSurveyDate<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"days"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>days <SPAN class="operator token">></SPAN> <SPAN class="number token">30</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>
    <SPAN class="keyword token">return</SPAN> <SPAN class="string token">"This has not been surveyed in past 30 days"</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN> <SPAN class="keyword token">else</SPAN> <SPAN class="punctuation token">{</SPAN>
    <SPAN class="keyword token">return</SPAN> <SPAN class="string token">"This has been surveyed in past 30 days"</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>