Lowest Prices in Cities

function solve(arr){
  let obj = {};

  for(let item of arr){
     let [townName,productName,productPrice] = item.split(" | ");
     productPrice = +productPrice;

     if(!obj[productName]){
        obj[productName] = {};
     }

     if(!obj[productName][townName]){
         obj[productName][townName] = productPrice;
     }else{
         obj[productPrice][townName] += productPrice;
     }
  }

  let arrOfObj = Object.entries(obj);

  arrOfObj.forEach(element => {
     let product = element[0];
     let resultPrices = Object.values(element[1]);
     let lowestPrice = Math.min(...resultPrices);
     let lowestTown = Object.keys(element[1])
     .filter(x => obj[product][x] === lowestPrice);

     console.log(`${product} -> ${lowestPrice} (${lowestTown})`)
  });
}

solve(
['Sample Town | Sample Product | 1000',
 'Sample Town | Orange | 2',
 'Sample Town | Peach | 1',
 'Sofia | Orange | 3',
 'Sofia | Peach | 2',
 'New York | Sample Product | 1000.1',
 'New York | Burger | 10']
)