Function distance

distance(from: Record<string, number>, to: Record<string, number>): number
Calculates the straight-line distance in metres between two locationTables. Does not require Location Services.
Parameters
- from: Record<string, number>
  locationTable with at least latitude and longitude
- to: Record<string, number>
  locationTable with at least latitude and longitude
Returns number
distance in metres, or -1 if either table is invalid