数组按照不同年份筛选最大月份

cat10month

于 2024-03-12 18:29:54 发布

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文章标签： javascript 开发语言

本文链接：https://blog.youkuaiyun.com/sunzhen15896/article/details/136659667

版权

let array1 = [
    {
        "month": "03",
        "year": "2024",
    },
    {
        "month": "02",
        "year": "2024",
    },
    {
        "month": "12",
        "year": "2023",
    },
    {
        "month": "11",
        "year": "2023",
    },
    {
        "month": "11",
        "year": "2023",
    }
]


const findMax = (list) => {
    list.forEach((element) => {
      let yearArr = list.filter((item) => item.year === element.year)
      if(yearArr.every((items) => element.month >= items.month)){
        element.isMax = 1
      }
    });
    return list;
  }

  console.log(findMax(array1))

//输出结果
[
  { month: '03', year: '2024', isMax: 1 },
  { month: '02', year: '2024' },
  { month: '12', year: '2023', isMax: 1 },
  { month: '11', year: '2023' },
  { month: '11', year: '2023' }
]