Lesson 4 - Re: creating a new empty array

[yuyangezheng]

The below code is the withdraw function of FundMe.sol.

function withdraw() public {
for (uint i=0; i < funders.length; i++) {
address funder = funders[i];
addressToAmountFunded[funder]=0;
}
funders = new address;
}

In the last line, we reset our funders array to a new empty array of length zero. I was wondering why must we use this notation for creating the empty array and why we cannot use funders = address[] instead. Also won't the code as written create a static array of length zero rather than a dynamic array as we had previously?

Thanks