Vec::pop

pub fn pop() -> Option<T>

Removes the last element and returns it, or None when the vector is empty.

Called on a Vec value as value.pop(…).

Returns#

Option<T>

Examples#

use tests::assert;
let v: Vec<int> = [1, 2];
assert!((v.pop() ?? 0) == 2);
assert!((v.pop() ?? 0) == 1);
assert!((v.pop() ?? 0) == 0);

See also#

• Vec: A growable, heap-allocated vector of T values.
• Vec::new: Creates a new, empty vector.
• Vec::with_capacity: Creates an empty vector with room for at least n elements.
• Vec::from: Creates a vector holding a copy of the elements of the fixed array arr.
• Vec::push: Appends x to the end of the vector.
• Vec::insert: Inserts x at index i, shifting later elements one place to the right.
• Vec::remove: Removes the element at index i and returns it, shifting later elements left.
• Vec::clear: Removes every element.