javascript - 如何对两个相关数组进行排序？

Question

我有一个带有两个数组的对象：

{
    names: ["aa", "bb", "cc", "dd", "ee", "ff"],
    price: [3,6,2,7,1,9]
}

我需要排序price，但我names也需要排序。

{
    names: ["ee", "cc", "aa", "bb", "dd", "ff"],
    price: [1,2,3,6,7,9]
}

标签： javascriptalgorithm

Answer 1

const input = {
    names: ["aa", "bb", "cc", "dd", "ee", "ff"],
    price: [3,6,2,7,1,9]
}

const merged_ary = []
for(var i = 0; i < input.names.length; i ++) {
  merged_ary.push({
    names: input.names[i],
    price: input.price[i],
  });
}

merged_ary.sort((a, b) => a.price - b.price)

const output = merged_ary.reduce((arr, val) => {
  if (!arr.names) arr.names = []
  if (!arr.price) arr.price = []
  arr.names.push(val.names);
  arr.price.push(val.price);
  return arr;
}, {});

console.log(output);