solved Task 1

code/csv2json.js

@@ -26,15 +26,13 @@ const csvToJson = function(data) {
         }
         return obj
     })
-    return data
+    return JSON.stringify(data)
 }
 
 
 const startTime = Date.now()
 let data = fs.readFileSync('./csv/population.csv', 'utf8')
 const endTime = Date.now()
-console.log(csvToJson(data))
 printStats('./csv/population.csv', endTime - startTime)
-
-fs.writeFileSync('./json/population.json', data)
+fs.writeFileSync('./json/population.json', csvToJson(data))