Function getMaximumExtent

getMaximumExtent(): JBounds | null
JMap.Project.getMaximumExtent

Returns loaded JMap project maximum extent. This is the extent to which the map will be constrained. The extent is expressed in the project's CRS

Returns JBounds | null
Throws
If no project is loaded

Example
```
// returns the project maximum extent if exists
JMap.Project.getMaximumExtent()
```