两个日期校验

vue+elementUI
两个日期校验：

• 开始日期不能大于结束日期；
• 结束日期不能小于开始日期；
• 开始日期大于当前日期；
• 结束日期大于当前日期；

<template>
   <el-form :model="model" ref="ruleSonform" label-width="85px">  
	    <el-form-item label="开始日期" prop="startDate"  verify class="is-required" label-width="140px">
	       <el-date-picker size="small"  type="date" v-model="model.startDate" align="right" 
	       :value-format="'yyyy-MM-dd'"
	       :picker-options="startDateOptions">
	       </el-date-picker>
	    </el-form-item>
	    <el-form-item label="结束日期" prop="endDate"  verify class="is-required" label-width="140px">
	       <el-date-picker size="small"  type="date" v-model="model.endDate" align="right" 
	       :value-format="'yyyy-MM-dd'" 
	       :picker-options="endDateOptions">
	       </el-date-picker>
	    </el-form-item>
  </el-form>
</template>
export default {
data(){
    const vue = this;
    return {
	    model: {
		    startDate: '',
		    endDate: ''
	    },
	    startDateOptions: {
	        disabledDate: (time) => {
	            if (vue.model.endDate) {
	                return (
		                time.getTime() < new Date() - 86400000 ||
		                time.getTime() > new Date(vue.model.endDate)
	                );
	            }
	            return time.getTime() < Date.now() - 86400000;
	        }
	    },
	    endDateOptions: {
	        disabledDate: (time) => {
	            if (vue.model.startDate) {
	                return time.getTime() <= new Date(vue.model.startDate) - 86400000;
	            }
	            return time.getTime() < Date.now() - 86400000;
	        }
	    },
     }
   }
}

注：
86400000 为一天的时间戳
verify 为 element-ui-verify 组件的属性
https://github.com/aweiu/element-ui-verify