Question on the following function:
function getEvens() pure external returns(uint[]) {
uint[] memory evens = new uint[](5);
// Keep track of the index in the new array:
uint counter = 0;
// Iterate 1 through 10 with a for loop:
for (uint i = 1; i <= 10; i++) {
// If `i` is even...
if (i % 2 == 0) {
// Add it to our array
evens[counter] = i;
// Increment counter to the next empty index in `evens`:
counter++;
}
}
return evens;
}
What is the point of keeping track of the index of the array instead of simply calling evens.push(i)