export function validateLocation()

in packages/geofire-common/src/index.ts [71:96]

• 23 lines of code
• 10 McCabe index (conditional complexity)

export function validateLocation(location: Geopoint): void {
  let error: string;

  if (!Array.isArray(location)) {
    error = 'location must be an array';
  } else if (location.length !== 2) {
    error = 'expected array of length 2, got length ' + location.length;
  } else {
    const latitude = location[0];
    const longitude = location[1];

    if (typeof latitude !== 'number' || isNaN(latitude)) {
      error = 'latitude must be a number';
    } else if (latitude < -90 || latitude > 90) {
      error = 'latitude must be within the range [-90, 90]';
    } else if (typeof longitude !== 'number' || isNaN(longitude)) {
      error = 'longitude must be a number';
    } else if (longitude < -180 || longitude > 180) {
      error = 'longitude must be within the range [-180, 180]';
    }
  }

  if (typeof error !== 'undefined') {
    throw new Error('Invalid GeoFire location \'' + location + '\': ' + error);
  }
}