Function setDistanceUnit

setDistanceUnit(distanceUnit): void
JMap.Map.setDistanceUnit

Set the distance unit, for the current project.

Save this preference in local storage.
Parameters
- distanceUnit: JMAP_DISTANCE_UNITS
  the distance unit
Returns void
Throws
if bad distance unit is provided, or no project is loaded

Example
```
// Set the distance unit to "miles"
JMap.Map.setDistanceUnit("miles")
```