以array1为键，array2为值的两个数组合并

const array1 = ["key1", "key2", "key3"];
const array2 = ["value1", "value2", "value3"];

const mergedObject = array1.reduce((obj, key, index) => {
  obj[key] = array2[index];
  return obj;
}, {});

console.log(mergedObject);

{
  key1: "value1",
  key2: "value2",
  key3: "value3"
}