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This map shows carbon storage of trees in Warren Wilson College. It does this by adding a FeatureLayer to a map. A FeatureLayer can either be created from an array of graphics, a PortalItem, a Map Service, or a Feature Service.

This sample uses a feature service to create the FeatureLayer, as shown below.

var featureLayer = new FeatureLayer({

By default, the FeatureLayer renders the features using a Renderer defined by the feature service. You can customize this by setting the renderer property of FeatureLayer.

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