Vue uses the date picker in elementUI

Vue uses the date picker in elementUI
Requirements: By default, the date of the past month is selected, and only the date from today to three years ago can be selected, and the date after today is not optional

 

<template>
  <el-date-picker
    v-model="dataValue"	
    type="daterange"
    range-separator="至"
    start-placeholder="开始日期"
    end-placeholder="结束日期"
    value-format="timestamp"
    @change="getTimes"
    :picker-options="pickerOptions0"
    :clearable="false"
    :editable="false"
    :default-time="['00:00:00', '23:59:59']"
  >
  </el-date-picker>
</template>

<script>
export default {
  data () {
    return {
    	//默认选择的日期近一个月 11月6日当前的时分秒（比如：现在是12月6日15:23:44，那么11月6日的时分秒也是15:23:44） - 今天12月6日23:59:59
      dataValue: [this.getNowTime(new Date() - 86400000 * 30), new Date(new Date(new Date().toLocaleDateString()).getTime() + 24 * 60 * 60 * 1000 - 1).getTime()],
     // 使用picker-options规定选择日期区间：今天以及今天三年前的日期
      pickerOptions0: {
        disabledDate (time) {
        //今天的23:59:59
          const curDate = new Date(new Date(new Date().toLocaleDateString()).getTime() + 24 * 60 * 60 * 1000 - 1).getTime()
          const three = 1080 * 24 * 3600 * 1000
          const threeYears = curDate - three
          return time.getTime() > curDate || time.getTime() < threeYears
        }
      }
    }
  },
  //发生改变的时候赋值开始时间与结束时间
  getTimes () {
      // 开始时间
      var startTime = this.dataValue[0]
      // 结束时间
      var endTime = this.dataValue[1]
      //传参给父
      this.$emit('getTimes', startTime, endTime)
    },
  methods: {
  //获取当前时间的时分秒
    getNowTime (time) {
      var now = new Date(time)
      var hour = now.getHours()
      var minute = now.getMinutes()
      var seconds = now.getSeconds()
      hour = hour.toString().padStart(2, '0')
      minute = minute.toString().padStart(2, '0')
      seconds = seconds.toString().padStart(2, '0')
      var newDate = Date.parse(`${now}`)
      console.log(hour + minute + seconds)
      return newDate
    }
  }
}
</script>