Removes howMany values from the back of the array. Unlike the
unparameterized versions above, these functions do not throw if
they could not remove howMany elements. Instead, if howMany > n,
all elements are removed. The returned value is the effective number
of elements removed. Both stable and non-stable versions behave the same
and guarantee that ranges iterating over the array are never invalidated.
Removes howMany values from the back of the array. Unlike the unparameterized versions above, these functions do not throw if they could not remove howMany elements. Instead, if howMany > n, all elements are removed. The returned value is the effective number of elements removed. Both stable and non-stable versions behave the same and guarantee that ranges iterating over the array are never invalidated.