javascript - 仅当组中的另一个键名称匹配时，如何才能从 JSON API 提取键值？

Question

这就是 JSON 文件的内容:

{
  "page": 1,
  "total_pages": 10,
  "listings": [
    {
      "name": "Bob",
      "occu": "Entry",
      "team": "Blue",
      "sec": 3,
      "days": 16
    },
    {
      "name": "Tom",
      "occu": "Advance",
      "team": "Main",
      "sec": 1,
      "days": 23
    },

This continues on with hundreds of other entries...

仅当“名字”是 Tom 时，我怎样才能提取“天”的值。

抱歉，如果这是一个原始问题，我刚刚开始开发，正在开发一个快速项目，该项目将帮助我本地的运动队，但我在脚本或 API 方面还不太先进。谢谢

Answer 1

仅当“名称”是 Tom 时才提取“天”的值，需要按'Tom' 名称过滤，然后映射 天

let listings = [
    {
      "name": "Bob",
      "occu": "Entry",
      "team": "Blue",
      "sec": 3,
      "days": 16
    },
    {
      "name": "Tom",
      "occu": "Advance",
      "team": "Main",
      "sec": 1,
      "days": 23
    },
    {
      "name": "Tom",
      "occu": "Advanddce",
      "team": "Maiddn",
      "sec": 1,
      "days": 55
    }
];

const result = listings.filter(listing=> listing.name=="Tom").map(listing => listing.days);
console.log(result);