In Rust, the `Vec::drain` method removes all elements from a vector and returns an iterator over the removed elements. This can be useful for clearing the vector or for moving the elements to another collection.
The `drain` method takes an optional range argument, which specifies the range of elements to be removed. If no range is specified, all elements in the vector are removed.
Filling a gas container is the process of transferring gasoline from a gas pump or storage tank into a portable container for later use. Gas containers are commonly used for fueling lawnmowers, generators, boats, and other small engines. They can also be used for storing gasoline for emergencies or extended periods.
There are a few important safety precautions to keep in mind when filling a gas container. First, always fill the container outdoors in a well-ventilated area. Gasoline fumes are flammable and can be dangerous if inhaled. Second, never smoke or use open flames near gasoline. Third, ground the gas container before filling it. This will help to prevent static electricity from building up and causing a spark. To ground the container, simply touch the metal spout of the gas can to a metal surface, such as the fill pipe of your vehicle.
