function _getProductType (arr, num, str) {
  let type = ""
  arr.forEach(val => {
    if (num == val.code_val) { //eslint-disable-line
      type = val.code_desc
    } else if (num == "1000") { //eslint-disable-line
      type = ""
    }
  })
  return type + "" + (str || "")
}
export async function productType (num, str) {
  let productTypes = []
  function aaa () {
    return getByCode(52).then(res => {
      if (res.data.success) {
        productTypes = res.data.data
        return _getProductType(productTypes, num, str)
      }
    })
  }
  let b = await aaa()
  return b
}

productType is a filter for vue, but returns promise, but the label attribute in template accepts only string types.
how to deal with this situation (axios is also owned by promise.)