fix(parsing): allow parsing coordinate at 0,0 with x,y object input

Author: evansiroky

index.js

@@ -82,6 +82,6 @@ function normalize (unknown) {
   if (!unknown) throw new Error('Value must not be null or undefined.')
   if (Array.isArray(unknown)) return fromCoordinates(unknown)
   else if (typeof unknown === 'string') return fromString(unknown)
-  else if (unknown.x && unknown.y) return fromPoint(unknown)
+  else if ((unknown.x || unknown.x === 0) && (unknown.y || unknown.y === 0)) return fromPoint(unknown)
   return floatize(unknown)
 }

index.test.js

@@ -127,6 +127,7 @@ describe('lonlat', () => {
   describe('issues', () => {
     it('#3 - Does not parse coordinates with 0 for lat or lon', () => {
       expect(ll({ lat: 0, lng: 0 })).toEqual({ lat: 0, lon: 0 })
+      expect(ll({ x: 0, y: 0 })).toEqual({ lat: 0, lon: 0 })
     })
   })
 })