javascript - 如何检查多个属性和速记if语句的相同字符串值？

const drug = {
  "isBrand": false,
  "drugName": "Hydr",
  "drugStrength": "5mg-300mg",
  "drugForm": "Tablet",
  "mailPrice": {
    "costEmployer": "0.0",
    "costToday": "N/A",
    "deductible": "n/a",
    "memberCopayAmount": "0.00",
    "penalties": "N/A",
    "totalDrugCost": "0.00"
  }
}

const priceFilterHandler = (item) => {
  let bRet = false;
  if (item.mailPrice.costEmployer === "N/A" || item.mailPrice.costEmployer === "n/a" || item.mailPrice.costToday == "N/A" || item.mailPrice.costToday === "n/a" || item.mailPrice.penalties === "N/A" || item.mailPrice.penalties === "n/a" || item.mailPrice.deductible === "N/A" || item.mailPrice.deductible === "n/a") {
    bRet = true;
  }

  return bRet;
};

console.log(priceFilterHandler(drug));