一起共勉

const areas = [
    {
        "areaPrice":32,
        "ticketPriceInfo":{
            "platServiceFee":3,
            "standPrice":29,
            "servicePrice":3,
            "addPrice":0
        },
        "areaId":"0"
    },
    {
        "areaPrice":35,
        "ticketPriceInfo":{
            "platServiceFee":3,
            "standPrice":32,
            "servicePrice":3,
            "addPrice":0
        },
        "areaId":"1"
    },
    {
        "areaPrice":32,
        "ticketPriceInfo":{
            "platServiceFee":3,
            "standPrice":29,
            "servicePrice":3,
            "addPrice":0
        },
        "areaId":"2"
    },
    {
        "areaPrice":35,
        "ticketPriceInfo":{
            "platServiceFee":3,
            "standPrice":32,
            "servicePrice":3,
            "addPrice":0
        },
        "areaId":"3"
    },
    {
        "areaPrice":39,
        "ticketPriceInfo":{
            "platServiceFee":3,
            "standPrice":36,
            "servicePrice":3,
            "addPrice":0
        },
        "areaId":"4"
    },
    {
        "areaPrice":33.5,
        "ticketPriceInfo":{
            "platServiceFee":3,
            "standPrice":"30.5",
            "servicePrice":3,
            "addPrice":0
        },
        "areaId":"8"
    }
  ]
  // 根据条件过滤出符合条件的值
  // const singleval = areas.filter((item)=>{return item.areaId == "0"})
  // const singleval1 = areas.filter((item)=>{return item.areaId !== "0"})
  // console.log(singleval)
  // console.log(singleval1)
  //降序
  // areas.sort(function(a,b){ return b.areaPrice - a.areaPrice })
  // 升序
  areas.sort(function(a,b){ return a.areaPrice - b.areaPrice })
  // singleval1.unshift(singleval[0]) 往数组头部插入数据
  console.log(areas)

运行结果
1、降序

image.png

2、升序

image.png