Build a Device Loan Ledger - Build a Device Loan Ledger

Curriculum Help
1

Tell us what’s happening:

I think my listOverdueDevices function is working correctly. I tested it with console.log(listOverdueDevices(equipmentLedger, '11/28/2026')); and got back what I think is the correct data.
But tests 18 - 20 are failing

Please advise

Your code so far

// Provided Ledger
const equipmentLedger = {
  "1": { type: "PC",     status: "CheckedOut", borrower: { name: "John Smith", email: "john@acme.org" }, dueDate: "11/30/2025" },
  "2": { type: "Laptop", status: "CheckedIn",  borrower: { name: "",           email: "" },              dueDate: "" },
  "3": { type: "Laptop", status: "CheckedOut", borrower: { name: "Jane Doe",   email: "jane@acme.org" }, dueDate: "10/31/2025" },
  "4": { type: "iPad",   status: "CheckedIn",  borrower: { name: "",           email: "" },              dueDate: "" }
};

const checkoutDevice = (ledger, assetTag, borrower) => {
  if (!Object.hasOwn(ledger, [assetTag])) {
    return { ledger: ledger, message: `assetTag ${assetTag} not found` };
  }
  if (ledger[assetTag].status === "CheckedOut") {
    return { ledger: ledger, message: `assetTag ${assetTag} already checked out` };
  }
  const newL = JSON.parse(JSON.stringify(ledger));
  const name = borrower.name;
  newL[assetTag].borrower.name = name;
  newL[assetTag].borrower.email = borrower.email;
  newL[assetTag].status = "CheckedOut";

  return { ledger: newL, message: `assetTag ${assetTag} checked out by ${name}` };
}

const checkinDevice = (ledger, assetTag) => {
  if (!Object.hasOwn(ledger, [assetTag])) {
    return { ledger: ledger, message: `assetTag ${assetTag} not found` };
  }
  const newL = JSON.parse(JSON.stringify(ledger));
  newL[assetTag].borrower.name = "";
  newL[assetTag].borrower.email = "";
  newL[assetTag].dueDate = "";
  newL[assetTag].status = "CheckedIn";

  return { ledger: newL, message: `assetTag ${assetTag} checked in` };
}

const dateFromString = str => {
  const e = str.split("/");
  return Number(e[2] + e[0].padStart(2, "0") + e[1].padStart(2, "0"));
}

const listOverdueDevices = (ledger, today) => {
  const retArr = [];
  const todayDate = dateFromString(today);

  const ledger2 = {};
  for (const dev in ledger) {
    if (ledger[dev].status === "CheckedOut" && dateFromString(ledger[dev].dueDate) < todayDate) {
    ledger2[dev] = ledger[dev];
    }
  }
  const arr = Object.entries(ledger2);
  arr.sort((a, b) => dateFromString(a[1].dueDate) - dateFromString(b[1].dueDate));
  for (const dev in arr) {
    retArr.push({[arr[dev][0]]: arr[dev][1]});
  }
  return retArr;
}

const serializeLedger = (ledger) => JSON.stringify(ledger)

const loadLedger= (json) => JSON.parse(json)

console.log(listOverdueDevices(equipmentLedger, '11/28/2026'));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:156.0) Gecko/20100101 Firefox/156.0

Challenge Information:

Build a Device Loan Ledger - Build a Device Loan Ledger

GitHub Link: freeCodeCamp/curriculum/challenges/english/blocks/lab-device-loan-ledger/69f0a37c3bf194a7c9c62492.md at main · freeCodeCamp/freeCodeCamp · GitHub

2

Hi @ambradnum,

Please take another look at the instructions:

…implement a listOverdueDevices(ledger, today) function that takes a ledger object and returns an array of the device objects that are overdue

Are you asked to also return an object key from the equipment ledger?

Happy coding