lesson 6 - addPerson() - passing the arguments in hardhat

[nikwilms]

Hi, I have a question about passing the arguments into addPerson() function in lesson 6.

This code is inside the hardhat framework:

    // Add person
    const transactionResponseAddPerson = await simpleStorage.addPerson("Nik", 10);
    transactionResponseAddPerson.wait(1);
    const updatedArray = await simpleStorage.addPerson();
    console.log(`Result is: ${updatedArray}`);

Function in solidity:

function addPerson(string memory _name, uint256 _favoriteNumber)

Error message:

  reason: 'missing argument: passed to contract',
  code: 'MISSING_ARGUMENT',
  count: 0,
  expectedCount: 2

Something I am missing to make it work, because I passed to arguments and it says count: 0

[shashikant-burnwal]

const updatedArray = await simpleStorage.addPerson();
Above line is what causing error, you are calling addPerson function but not giving any arguments.

What I understand is you are trying to get output after you passed the name and favNumber in "const transactionResponseAddPerson = await simpleStorage.addPerson("Nik", 10);" But most probably, your addPerson function does not have a return statement so how you can expect a return from it.

So, this is not the way you should do it. Either you need to call these variables people (array) or nameToFavoriteNumber (list) to get the output of the inputs you sent.

[nikwilms]

Now I see, thank you for the help!

I changed it to:

// Add person
const tx = await simpleStorage.addPerson("Nik", "10");
tx.wait(1);
const updatedArray = await simpleStorage.people(0)
console.log(`Name Value: ${updatedArray.name}\nNumber Value: ${updatedArray.favoriteNumber}`);

[jacobhay2626]

Hi, I am trying to understand this section and this has helped a lot but would you mind explaining why you have to put (0) when calling people? (in the line:)

const updatedArray = await simpleStorage.people(0)