Function hasInformationReport

hasInformationReport(layerId): boolean
JMap.Layer.hasInformationReport

Returns true if the given layer has an information report set in JMap Admin.
Parameters
- layerId: JId
  the JMap layer id
Returns boolean
Throws
if layerId not valid or layer not found

Example
```
// returns true if JMap layer id="3" has an information report set in JMap admin
JMap.Layer.hasInformationReport(3)
```