The header row of a CSV text, trimmed — lets a host build a column-mapping UI (which column is latitude/longitude/geometry?) BEFORE calling parseFile/parseSource with { latField, lngField } or { geometryField }.
Optional
The header row of a CSV text, trimmed — lets a host build a column-mapping UI (which column is latitude/longitude/geometry?) BEFORE calling parseFile/parseSource with { latField, lngField } or { geometryField }.