Function Vector.length
Returns the length of the vector, in terms of number of elements.
size_t length() const pure nothrow @nogc @property scope @safe;
This is the number of actual elements that conform the contents of the Vector
, which is not necessarily equal to its storage capacity.
Examples
Vector!(int, 10) vec = null;
assert(vec .length == 0);
vec .append(42);
assert(vec .length == 1);
vec .append(123);
assert(vec .length == 2);
vec .clear();
assert(vec .length == 0);