JSON.stringfy

　　JSON.parse

报错：unexpected token u in position 0

if (sessionStorage.getItem('houseIdList')) {      this.formData.houseIds = JSON.parse(sessionStorage.getItem('houseIdList')).houseIds    }

改为

if (sessionStorage.getItem('houseIdList')) {      this.formData.houseIds = JSON.parse(JSON.stringify(sessionStorage.getItem('houseIdList'))).houseIds    }