fix: correctly formatted ads-b exchange data

src/lib/get-data.mjs

@@ -25,6 +25,8 @@ export async function getOpenskyData() {
 
 export async function getAdbsExchangeData({ lat, lon, radius }) {
   const positionSourceMap = ['Unknown', 'Mode-S', 'ADS-B', 'ADS-B', 'ADS-B', 'ADS-B'];
+  const formatNumber = str => str && Number(`${str}`.replace(/[^0-9.-]/, ''));
+
   const res = await fetch.get(
     `http://public-api.adsbexchange.com/VirtualRadar/AircraftList.json?lat=${lat}&lng=${lon}&fDstL=0&fDstU=${radius}`
   );
@@ -38,11 +40,11 @@ export async function getAdbsExchangeData({ lat, lon, radius }) {
     location: rec.Lat && rec.Long ? `${rec.Lat},${rec.Long}` : null,
     lat: rec.Lat,
     lon: rec.Long,
-    baro_altitude: rec.Alt,
-    geo_altitude: rec.Galt,
+    baro_altitude: formatNumber(rec.Alt),
+    geo_altitude: formatNumber(rec.GAlt),
     on_ground: rec.Gnd,
-    velocity: rec.Spd,
-    vertical_rate: rec.Vsi,
+    velocity: formatNumber(rec.Spd),
+    vertical_rate: formatNumber(rec.Vsi),
     squawk: rec.Sqk,
     spi: false,
     position_source: positionSourceMap[rec.Trt],