element ui el-date-picker 组件默认当前月份

1.html 代码

 <el-date-picker v-model="listQuery.month" type="month" value-format="yyyy-MM" placeholder="选择月">
            </el-date-picker>

js

  created() {
    var nowDate = new Date();
    var date = {
      year: nowDate.getFullYear(),
      month: nowDate.getMonth() + 1,
      day: nowDate.getDate(),
    };
    const dayDate =
      date.year + "-" + (date.month >= 10 ? date.month : "0" + date.month);  
    var date = new Date();
    this.$set(this.listQuery, "month", dayDate.toString());
  },

element ui el-date-picker 组件默认当年

<el-date-picker
  v-model="QSsearch.year"
  type="year"
  value-format="yyyy"
  :picker-options="pickerOptions"
  @change="selectTime"
  placeholder="选择年">
</el-date-picker>

 QSsearch: {
     year:new Date().getFullYear().toString()
},

new Date() 用法

var d = new Date();
d .getFullYear(); //获取完整的年份(4位)
d .getMonth(); //获取当前月份(0-11,0代表1月)
d .getDate(); //获取当前日(1-31)
d .getDay(); //获取当前星期X(0-6,0代表星期天)
d .getTime(); //获取当前时间(从1970.1.1开始的毫秒数)
d .getHours(); //获取当前小时数(0-23)
d .getMinutes(); //获取当前分钟数(0-59)
d .getSeconds(); //获取当前秒数(0-59)
d .getMilliseconds(); //获取当前毫秒数(0-999)
d .toLocaleDateString(); //获取当前日期
var mytime=d.toLocaleTimeString(); //获取当前时间
d.toLocaleString( ); //获取日期与时间