添加二维对象的值-forEach？

Question

我如何迭代并获取子对象内所有值的总和？

在下面的示例中，我想添加所有windows。

let house = {
  livingroom: { windows: 6, doors: 4 },
  bedroom: { windows: 4, doors: 2 },
  bathroom: { windows: 2, doors: 1 },
  garden: { windows: 0, doors: 2 }
}

我也尝试过：Object.values(house).reduce(sum, curr => sum + curr));和let x += Object.values(house).forEach(sum => sum);

Answer 1

您可以尝试这个

Object.values(house).map(item => item.windows).reduce((accumulator, currentValue) => accumulator + currentValue)

Answer 2

如果理解正确，则需要迭代这些值，可以使用Object.values：

let house = {
  livingroom: { windows: 6, doors: 4 },
  bedroom: { windows: 4, doors: 2 },
  bathroom: { windows: 2, doors: 1 },
  garden: { windows: 0, doors: 2 }
}

let count = { windows: 0, doors: 0 }

for (const room of Object.values(house)) {
  count.windows += room.windows
  count.doors += room.doors
}

console.log(count)