import {geoJSON} from "leaflet";
import {LineString} from "geojson";

const myLines: LineString[] = [{
  "type": "LineString",
  "coordinates": [[-100, 40], [-105, 45], [-110, 55]]
}, {
  "type": "LineString",
  "coordinates": [[-105, 40], [-110, 45], [-115, 55]]
}];

// this cuases an error, eventhough it shouldn't:
// TS2345: Argument of type 'LineString[]' is not assignable to parameter of type 'GeoJsonObject'. 
// Property 'type' is missing in type 'LineString[]' but required in type 'GeoJsonObject'.
geoJSON(myLines);

// this works, but should not be needed
const myLinesLayer = geoJSON(undefined)
myLines.forEach((line) => myLinesLayer.addData(line))