https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/updating-featurelayer-with-features-being-added-or/m-p/1202613#M78278 <P>I am trying to figure out the most efficient way to manipulate features on the FeatureLayer. Specifically:</P><UL><LI>If feature not on layer - add it</LI><LI>If feature on layer already - ignore it</LI><LI>If feature on layer but not in feature list - remove it&nbsp;</LI></UL><P>&nbsp;</P><LI-CODE lang="javascript">function GetFeatures(data: Features[]) { var polygonFeatures = data.filter(e =&gt; e.isPolygon); var pointFeatures = data.filter(e =&gt; e.isPoint); this.polygonFeatureLayer?.queryFeatures({ where: "id NOT IN (" + polygonFeatures .map(x =&gt; { return "'" + x.id + "'" }) + ")" }) .then((results) =&gt; this.polygonFeatureLayer?.applyEdits({ deleteFeatures: results.features })); this.polygonFeatureLayer?.applyEdits({addFeatures: convertFeaturesToFormat(polygonFeatures)}); }</LI-CODE><P>&nbsp;</P><P>I am about to put together a function for omitting features so it doesn't duplicate them.</P><P>&nbsp;</P><P>What is the most efficient way to do the above?</P> Sat, 13 Aug 2022 04:30:18 GMT Aeseir 2022-08-13T04:30:18Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/updating-featurelayer-with-features-being-added-or/m-p/1202613#M78278 <P>I am trying to figure out the most efficient way to manipulate features on the FeatureLayer. Specifically:</P><UL><LI>If feature not on layer - add it</LI><LI>If feature on layer already - ignore it</LI><LI>If feature on layer but not in feature list - remove it&nbsp;</LI></UL><P>&nbsp;</P><LI-CODE lang="javascript">function GetFeatures(data: Features[]) { var polygonFeatures = data.filter(e =&gt; e.isPolygon); var pointFeatures = data.filter(e =&gt; e.isPoint); this.polygonFeatureLayer?.queryFeatures({ where: "id NOT IN (" + polygonFeatures .map(x =&gt; { return "'" + x.id + "'" }) + ")" }) .then((results) =&gt; this.polygonFeatureLayer?.applyEdits({ deleteFeatures: results.features })); this.polygonFeatureLayer?.applyEdits({addFeatures: convertFeaturesToFormat(polygonFeatures)}); }</LI-CODE><P>&nbsp;</P><P>I am about to put together a function for omitting features so it doesn't duplicate them.</P><P>&nbsp;</P><P>What is the most efficient way to do the above?</P> Sat, 13 Aug 2022 04:30:18 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/updating-featurelayer-with-features-being-added-or/m-p/1202613#M78278 Aeseir 2022-08-13T04:30:18Z