var.removeAt
bool removeAt(size_t index) @safeRemove the element at index. Returns true if removed, false if index is out of range or the value is Type.NULL. Throws a VarTypeException if the current type is neither NULL nor ARRAY.
bool removeAt(size_t index) @safeRemove the element at index. Returns true if removed, false if index is out of range or the value is Type.NULL. Throws a VarTypeException if the current type is neither NULL nor ARRAY.