Arcade-Ausdruck zum Dekodieren von Werten

AndrewL

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Ich versuche, einen Arcade-Ausdruck zu verwenden, um codierte Werte in einem Popup in ArcGIS Online anzuzeigen, aber es funktioniert nicht. Ich verwende den Code aus dem decode Beispiel<\/A>. Es wird im Popup nicht angezeigt. Im Popup wird keine Fehlermeldung angezeigt.<\/P>

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var code = $feature.dn;
var decodedValue = Decode(code, 2, 'Non-Severe', 3, 'Marginal', 4, 'Slight', 'Other');<\/P>

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Ich bin nicht der Autor des Kartendienstes. Das dn-Feld ist ein esriFieldTypeDouble.<\/EM> Vielen Dank.<\/P><\/P><\/EM><\/P><\/BODY><\/HTML>

kenbuja

You needed to state what value to return. See the documentation about this.

<SPAN class="keyword token">var</SPAN> code <SPAN class="operator token">=</SPAN> $feature<SPAN class="punctuation token">.</SPAN>dn<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> decodedValue <SPAN class="operator token">=</SPAN> <SPAN class="token function">Decode</SPAN><SPAN class="punctuation token">(</SPAN>code<SPAN class="punctuation token">,</SPAN> <SPAN class="number token">2</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'Non-Severe'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">3</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'Marginal'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">4</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'Slight'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'Other'</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
decodedValue<SPAN class="punctuation token">;</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍&nbsp; <SPAN class="comment token">//return decodedValue; also works‍‍‍</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

or it could be a single line expression.

<SPAN class="token function">Decode</SPAN><SPAN class="punctuation token">(</SPAN>$feature<SPAN class="punctuation token">.</SPAN>dn<SPAN class="punctuation token">,</SPAN> <SPAN class="number token">2</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'Non-Severe'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">3</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'Marginal'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">4</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'Slight'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'Other'</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>‍‍‍‍
<SPAN class="comment token">// return Decode($feature.dn, 2, 'Non-Severe', 3, 'Marginal', 4, 'Slight', 'Other');‍‍‍‍ to be more explicit</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>