如何在Node.js中查找JavaScript对象数组中匹配时间的Id？

针对你的需求，这里提供几种简单高效的Node.js实现方案，因为数组规模很小（最多100个元素），无需复杂优化：

方法1：filter + map 组合遍历 #

先筛选出符合条件的对象，再提取对应的Id：

const dynamicObjectArray = [
  {Id: 1422859025, FromTime: "2023-02-12T19:00:00Z", ToTime: "2023-02-12T20:00:00Z"},
  {Id: 1422859027, FromTime: "2023-02-12T18:00:00Z", ToTime: "2023-02-12T19:00:00Z"}
];

const targetTime = "2023-02-12T19:00:00Z";

const matchedIds = dynamicObjectArray
  .filter(obj => obj.FromTime === targetTime || obj.ToTime === targetTime)
  .map(obj => obj.Id);

console.log(matchedIds); // 输出：[1422859025, 1422859027]

方法2：reduce 一次遍历完成 #

通过一次遍历同时完成筛选和Id收集，代码更紧凑：

const dynamicObjectArray = [
  {Id: 1422859025, FromTime: "2023-02-12T19:00:00Z", ToTime: "2023-02-12T20:00:00Z"},
  {Id: 1422859027, FromTime: "2023-02-12T18:00:00Z", ToTime: "2023-02-12T19:00:00Z"}
];

const targetTime = "2023-02-12T19:00:00Z";

const matchedIds = dynamicObjectArray.reduce((acc, obj) => {
  if (obj.FromTime === targetTime || obj.ToTime === targetTime) {
    acc.push(obj.Id);
  }
  return acc;
}, []);

console.log(matchedIds); // 输出：[1422859025, 1422859027]

两种方法在小规模数组下性能差异可忽略，可根据个人代码习惯选择。

内容的提问来源于stack exchange，提问作者LuckyCoder