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JavaScript JavaScript Array Iteration Methods Combining Array Methods Combining filter() and reduce()

Ali .
Ali .
15,521 Points
Posted by Ali .
Ali .
15,521 Points

What's wrong?

Can I know what is the issue? 

const purchaseItems = [
    {
        name: 'apples',
        dept: 'groceries',
        price: 2.49
    },
    {
        name: 'bread',
        dept: 'groceries',
        price: 2.99
    },
    {
        name: 'batteries',
        dept: 'electronics',
        price: 5.80
    },
    {
        name: 'eggs',
        dept: 'groceries',
        price: 3.99
    },
    {
        name: 't-shirts',
        dept: 'apparel',
        price: 9.99
    }
];
let groceryTotal;
groceryTotal = purchaseItems
  .filter((debts, prices) => debts.debt == 'groceries' + prices.price)
  .reduce((sum,prices ) =>  sum + prices.price , 0);

console.log(groceryTotal)
 // groceryTotal should be: 9.47
// Write your code below

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

You're close, but there's a few issues:

  • the callback in "filter" gets only one argument
  • you have "debt" instead of "dept" (with a "p")
  • the price won't be involved in the filter
  • the "sum" should be included with the price in the "reduce" expression
Ali .
Ali .
15,521 Points
Ali .
Ali .
15,521 Points

Thank you a lot, Steven.