const { encode, decode } = require("hilbert-geohash");
 
encode(24, 61) // ZWSQ0WSQ0W
 
decode("ZWSQ0WSQ0W") // { lng: 24.000000078231096, lat: 60.99999996833503 }
 

const { encode,
    decode,
    decode_exactly,
    hilbert_curve,
    neighbours,
    rectangle } = require("hilbert-geohash");
 
 
// encode(lng, lat, precision = 10, bits_per_char = 6)
encode(24, 61) // ZWSQ0WSQ0W
 
// decode(lng, lat, bits_per_char = 6)
decode("ZWSQ0WSQ0W") // { lng: 24.000000078231096, lat: 60.99999996833503 }
 
// decode_exactly(lng, lat, bits_per_char = 6)
decode_exactly("ZWSQ0WSQ0W") // {
                 //   lng: 24.000000078231096,
                 //   lat: 60.99999996833503,
                 //   lng_err: 1.6763806343078613e-7,
                 //   lat_err: 8.381903171539307e-8
                 // }
 
// neighbours(geohash, bits_per_char = 6)
neighbours("ZWSQ0WSQ0W"); // {
                  //   'east': 'ZWSQ0WSQ0X',
                  //   'west': 'ZWSQ0WSQ0o',
                  //   'north': 'ZWSQ0WSQ0i',
                  //   'north-east': 'ZWSQ0WSQ0h',
                  //   'north-west': 'ZWSQ0WSQ0n',
                  //   'south': 'ZWSQ0WSQ0V',
                  //   'south-east': 'ZWSQ0WSQ0Y',
                  //   'south-west': 'ZWSQ0WSQ0p'
                  // }
 
// rectangle(geohash, bits_per_char = 6)
rectangle("ZWSQ0WSQ0W") // {
            //   "type":"Feature",
            //   "properties": {
            //     "code": "ZWSQ0WSQ0W",
            //     "lng":  24.000000078231096,
            //     "lat":60.99999996833503,
            //     "lng_err":1.6763806343078613e-7,
            //     "lat_err":8.381903171539307e-8,
            //     "bits_per_char":6
            //   },
            //   "bbox": [
            //     23.999999910593033,
            //     60.999999884516,
            //     24.00000024586916,
            //     61.000000052154064
            //   ],
            //   "geometry": {
            //     "type": "Polygon",
            //     "coordinates": [
            //       [
            //         [23.999999910593033,60.999999884516],
            //         [24.00000024586916,60.999999884516],
            //         [24.00000024586916,61.000000052154064],
            //         [23.999999910593033,61.000000052154064],
            //         [23.999999910593033,60.999999884516]
            //       ]
            //     ]
            //   }
            // }
 
// hilbert_curve(precision, bits_per_char = 6)
hilbert_curve(1); // {
          //   "type":"Feature",
          //   "properties": {},
          //   "geometry": {
          //     "type":"LineString",
          //     "coordinates": [
          //       [-157.5,-78.75],
          //       .
          //       .
          //       .
          //       [157.5,-78.75]
          //     ]
          //   }
          // }