Challenge 1 — Solution

Task: Given const stock = { apples: 10, bananas: 5, oranges: 8 }, use
Object.entries and a for...of loop with destructuring to log each
item as "item: quantity", then use Object.values combined with
reduce to log the total quantity.

const stock = { apples: 10, bananas: 5, oranges: 8 };

for (const [item, quantity] of Object.entries(stock)) {
    console.log(`${item}: ${quantity}`);
}

const total = Object.values(stock).reduce((sum, quantity) => sum + quantity, 0);
console.log(`Total: ${total}`);


Expected output:

apples: 10
bananas: 5
oranges: 8
Total: 23


Notes:
- Object.entries(stock) returns [["apples", 10], ["bananas", 5],
  ["oranges", 8]] — each pair destructures directly into item and
  quantity inside the for...of loop.
- Object.values(stock) skips the keys entirely and returns just
  [10, 5, 8], which reduce then sums in one expression — no manual
  running-total variable needed, unlike the Fundamentals Chapter 7
  version of this same task.
- This produces identical results to a for...in loop with bracket
  notation, just with less manual bookkeeping.