Function applyJsonToWebMap

applyJsonToWebMap(webMapJson, map, portalItem?): Promise<void>
Updates an ArcGIS JS API WebMap from the given web map JSON.
Parameters
- webMapJson: Partial<WebMapJson>
  The JSON to apply.
- map: Map
  The layer to update.
- OptionalportalItem: PortalItem
  The Portal item definition if the web scene comes from Portal/AGOL.
Returns Promise<void>