// Sample database of addresses with their corresponding latitude and longitude const addressDatabase = [ { address: "Address 1 Wilmac Geomatics Ltd", latitude: 37.7749, longitude: -122.4194 }, { address: "Pipers Meadow", latitude: 34.0522, longitude: -118.2437 }, { address: "Address 3", latitude: 40.7128, longitude: -74.0060 }, // Add more addresses with their latitudes and longitudes as needed ]; // Function to calculate the distance between two coordinates using the Haversine formula function calculateDistance(lat1, lon1, lat2, lon2) { const R = 6371; // Earth's radius in kilometers const dLat = (lat2 - lat1) * (Math.PI / 180); const dLon = (lon2 - lon1) * (Math.PI / 180); const a = Math.sin(dLat / 2) * Math.sin(dLat / 2) + Math.cos(lat1 * (Math.PI / 180)) * Math.cos(lat2 * (Math.PI / 180)) * Math.sin(dLon / 2) * Math.sin(dLon / 2); const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a)); const distance = R * c; // Distance in kilometers return distance; } // Function to find the nearest address in the database to a specified address function findNearestAddress(specifiedAddress) { // Convert the specified address to latitude and longitude using a geocoding service/API // For this example, let's assume the specifiedAddress has already been converted to latitude and longitude // Sample specified address (latitude and longitude) const specifiedLatitude = 37.7749; // Replace with the latitude of the specified address const specifiedLongitude = -122.4194; // Replace with the longitude of the specified address let nearestAddress = null; let nearestDistance = Number.MAX_VALUE; for (const addressEntry of addressDatabase) { const distance = calculateDistance( specifiedLatitude, specifiedLongitude, addressEntry.latitude, addressEntry.longitude ); if (distance < nearestDistance) { nearestDistance = distance; nearestAddress = addressEntry.address; } } return nearestAddress; } // Usage example const specifiedAddress = "Your specified address"; const nearestAddress = findNearestAddress(specifiedAddress); console.log(`The nearest address to ${specifiedAddress} is ${nearestAddress}.`);