topic Re: Get DisplayField from Layer loaded via WebMap in ArcGIS JavaScript Maps SDK Questions

Get DisplayField from Layer loaded via WebMap

SebastianKrings — Tue, 12 May 2026 07:04:32 GMT

Hi,

we are loading our map from a WebMap which also contains all layers defined as part of the webmap via portal.

const webMap = new WebMap({ portalItem: { id: defaultWebMapId } }); await webMap.load(); map = webMap;

Unfortunately the field "DisplayField" is undefined for every layer.
This is how a layer looks on the service:

Why is it empty in JS after loading the webMap?

How do I get it otherwise?

Sage_Wall — Tue, 12 May 2026 14:34:54 GMT

It sounds like all the layer's haven't fully loaded, what happens if you use WebMap.loadAll()

SebastianKrings — Tue, 12 May 2026 19:10:36 GMT

Works great + Loads Basemap as Layer which wasnt there before using .load() only.