Introduction:
A. FindBusinessBasedOnCity(cityToSearch, saveLocation1, collection) – This function searches the ‘collection’ given to find all the business present in the city provided in ‘cityToSearch’ and save it to ‘saveLocation1’. For each business you found, you should store the name, full address, city, and state of the business in the following format. Each line of the saved file will contain: Name$FullAddress$City$State. ($ is the separator and must be present.)
B. FindBusinessBasedOnLocation(categoriesToSearch, myLocation, maxDistance, saveLocation2, collection) – This function searches the ‘collection’ given to find the name of all the businesses present in the ‘maxDistance’ from the given ‘myLocation’ (please use the distance algorithm given below) and save them to ‘saveLocation2’. Each line of the output file will contain the name of the business only.
Distance Algorithm:
A distance algorithm will need to be used. Given two pairs of latitude and longitude as [lat2, lon2] and [lat1, lon1], you can calculate the distance between them using the formula given below:
DistanceFunction(lat2, lon2, lat1, lon1):
● var R = 3959; // miles
● var φ1 = lat1.toRadians();
● var φ2 = lat2.toRadians();
● var Δφ = (lat2-lat1).toRadians();
● var Δλ = (lon2-lon1).toRadians();
● var a = Math.sin(Δφ/2) * Math.sin(Δφ/2) + Math.cos(φ1) * Math.cos(φ2) * Math.sin(Δλ/2) * Math.sin(Δλ/2);
● var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
● var d = R * c;
● d is the distance between the given pair of latitude and longitude. The distance is in miles.
Reference: http://www.movable-type.co.uk/scripts/latlong.html
Feedback:
There is one test case for a total of one point. If some part of your data is incorrect, you will get partial scores of 0.25, 0.50, or 0.75. If the submission fails, you will see the corresponding error logs that indicate where the error occurred.
2
