js map遍历

tabs: [
      {
        id: 0,
        value: "综合",
        isActive: true
      },
      {
        id: 1,
        value: "销量",
        isActive: false
      },
      {
        id: 2,
        value: "价格",
        isActive: false
      }
    ]

    2个代码效果相同
1>>>>>
    tabs.forEach((v, i) => i === index ? v.isActive = true : v.isActive = false);
2>>>>>
    tabs.forEach(function (value, key) {
      console.log(value, key);
      value.isActive = key === index ? true : false;
    });