javascript - 将数组转换为具有预定义键的映射

Question

我有一个数组中的数据，看起来像这样:

let data = {[val1, val2, val3], [val4, val5, val6]}

我需要将其转换为具有预定义键的 map :

let keys = [key1, key2, key3]

我希望我的输出是这样的键值映射:

0: {key1:value1, key2:value2, key3:value3}
1: {key1:value4, key2:value5, key3:value6}

我试过:

let obj = Object.assign(keys, data)

但是输出是:

0: (3) [value1, value2, value3]
1: (3) [value4, value5, value6]

Answer 1

使用Object.fromEntries 和映射

const data = [
  [1, 2, 3],
  [4, 5, 6]
];
const keys = ["key1", "key2", "key3"];

const updated = data.map(arr =>
  Object.fromEntries(arr.map((item, i) => [keys[i], item]))
);

console.log(updated);