https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/get-total-length-of-polyline-feature-layer/m-p/1613743#M87136 <P>Hi all,</P><P>i want to get total length of my feature layer, i use API version 4. 27.</P><P>I tried this code:</P><LI-CODE lang="javascript"> view.when(function() { var length = geometryEngine.geodesicLength(wyalmomaragebareabilitaciebi2025, "meters"); console.log("Polyline length (meteres): ", length); });</LI-CODE><P>&nbsp;</P><P>but it did not work, i get <STRONG>ERROR</STRONG>:&nbsp;<FONT color="#FF0000"><STRONG>Uncaught (in promise) TypeError: Cannot read properties of null (reading 'B')</STRONG></FONT></P><P>I can do it using query, but it slows load time, help please.</P><P>&nbsp;</P><P>Thank you</P> Mon, 12 May 2025 17:57:29 GMT Vakhtang_Zubiashvili 2025-05-12T17:57:29Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/get-total-length-of-polyline-feature-layer/m-p/1613743#M87136 <P>Hi all,</P><P>i want to get total length of my feature layer, i use API version 4. 27.</P><P>I tried this code:</P><LI-CODE lang="javascript"> view.when(function() { var length = geometryEngine.geodesicLength(wyalmomaragebareabilitaciebi2025, "meters"); console.log("Polyline length (meteres): ", length); });</LI-CODE><P>&nbsp;</P><P>but it did not work, i get <STRONG>ERROR</STRONG>:&nbsp;<FONT color="#FF0000"><STRONG>Uncaught (in promise) TypeError: Cannot read properties of null (reading 'B')</STRONG></FONT></P><P>I can do it using query, but it slows load time, help please.</P><P>&nbsp;</P><P>Thank you</P> Mon, 12 May 2025 17:57:29 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/get-total-length-of-polyline-feature-layer/m-p/1613743#M87136 Vakhtang_Zubiashvili 2025-05-12T17:57:29Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/get-total-length-of-polyline-feature-layer/m-p/1613971#M87142 <P>Input for&nbsp;geodesicLength() is a geometry, not a feature layer:&nbsp;<A href="https://developers.arcgis.com/javascript/latest/api-reference/esri-geometry-geometryEngine.html#geodesicLength" target="_blank">geometryEngine | API Reference | ArcGIS Maps SDK for JavaScript 4.32 | Esri Developer</A></P><P>You should query a feature from your layer, get feature.geometry and pass it to geodesicLength()</P> Tue, 13 May 2025 11:24:09 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/get-total-length-of-polyline-feature-layer/m-p/1613971#M87142 Edvinas_S 2025-05-13T11:24:09Z