根据身份证号码取出生日期

 <el-input v-model.trim="formObj.idcard" @blur="brithdayDate(formObj.idcard)" placeholder="请输入身份证号码"></el-input>

 

 // 根据身份证号码获取出生日期

     brithdayDate(IdNO){

      this.formObj.birthday = "";

      if (IdNO.length==18) {

        this.formObj.birthday = IdNO.substr(6,8);

        return this.formObj.birthday = this.formObj.birthday.replace(/(.{4})(.{2})/,"$1-$2-");

      }else if(IdNO.length==15){

        this.formObj.birthday = "19"+IdNO.substr(6,6);

        return this.formObj.birthday = this.formObj.birthday.replace(/(.{4})(.{2})/,"$1-$2-");

      }else{

        return "";

      }

    },