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Finding a FeatureLayer in the map and calling queryFeatures

Question asked by DevonTaig on Apr 15, 2016
Latest reply on Apr 15, 2016 by thejus.kambi

I have a map service located here: River/GDT_SDE (MapServer)  that has 10 sub layers.  I want to use queryFeatures on the "Waypoints" sublayer.  How can I loop through all of the layers in the map (sublayers too) and find that layer  by its name and then call queryFeatures on it?  In the examples I have seen, a new FeatureLayer is always created... I don't want to create a new FeatureLayer from the URL, but rather get it from the map.


(queryFeatures is documented here: FeatureLayer (legacy) | API Reference | ArcGIS API for JavaScript ).