Remix codes

[badgesultan]

So I'd like to ask is from here
uint256 favoriteNumber;

function store(uint256 _favoriteNumber) public {
_favoriteNumber = _favoriteNumber;
}
it failed to compile and failed to deploy too
Guess what! i'm following the coach on youtube line by line by its not working over here

[junaid5598]

what error is it showing ??

[hemant933]

_favoriteNumber = _favoriteNumber; this line is wrong .

correct is : favoriteNumber = _favoriteNumber;

because _favoriteNumber is the parameter u passed to the function which the user will provide u and _favoriteNumber is stored in the global variable u declare outside the function favoriteNumber