I labeled an attribute of a point featureclass in the arcma. And I used the advanced python expression to process this attribute. Then I published my map on the ArcGIS Server. I wanna use the published map to build my web application with arcgis javascript api calling different featureclasses at the front end. Is there any method if I wanna change the advanced python expression using javascript api at the front end? For example, now my label of this featureclass is the temperature expression, and I wanna change it to rainfall expression at the front end (map is already published).
