Function applyContextById

applyContextById(contextId): Promise<void>
JMap.MapContext.applyContextById

Apples the map context for a given id.
Parameters
- contextId: JId
  the JMap map context id
Returns Promise<void>
Throws
if map-context not found

Example
```
// load the map-context id=3 on screen
JMap.MapContext.applyContextById(3)
 .then(() => console.info("Map context applied"))
 .catch(error => console.error(error))
```