Function not working

[Atharv-02]

pragma solidity ^0.8.18;

contract SimpleStorage{
    //Gets initialized to 0 
    uint256 public favoriteNumber;
    uint256 public favoriteNumberpig;
    bytes32[] public names;
    function store(uint256 _favoriteNumber) public {
        favoriteNumber=_favoriteNumber;
    }
    function addPerson(bytes32 num) public {
        names.push(num);
    }
}

Can you please tell me why is the add person function not working

[Naman1729]

Hey @Atharv-02 ,

• What value are you passing in the function addPerson.
• As I can see that parameter is of type of Bytes32 so you need to pass the vale in Bytes32 .if you will pass value in string or any integer number it will give an error .
• If you want to store names through the add person function, then change the datatype of both array names and function parameter to string. Don't forget to use string memory for the function parameter.

[Atharv-02]

why cant I pass string in bytes32 ??

[Naman1729]

Hey @Atharv-02 , We can't pass string in Bytes32 because Bytes32 type is a fixed-size byte array that can store exactly 32 bytes of data . It is commonly used to represent fixed-size data, such as hashes or identifiers, and it is not designed to handle variable-length data like strings.
string is not implicitly castable to bytes32