chapter 3

[siyer-contractor]

from chapter 3. not sure if this is the best way to explain but here we go,

please see the comments in the last 2 functions. Is either way of calculation fine and is it down to personal preference?

function getPrice() public view returns(uint256){
    AggregatorV3Interface priceFeed = AggregatorV3Interface(0x694AA1769357215DE4FAC081bf1f309aDC325306);
    (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound)= priceFeed.latestRoundData();
    //return uint256(answer * 1e10 );// why this?
    return uint256(answer);// instead of this?
}

function getConversionRate(uint256 ethAmount) public view returns(uint256){
    uint256 price = getPrice();
    //return (price * ethAmount)/ 1e10 ; // why this?
    return (price * ethAmount)/ 1e8 ; // instead of this?
}