Double-ended Queue - Operations

Operations

The following operations are possible on a deque:

operation common name(s) Ada C++ Java Perl PHP Python Ruby JavaScript
insert element at back inject, snoc Append push_back offerLast push array_push append push push
insert element at front push, cons Prepend push_front offerFirst unshift array_unshift appendleft unshift unshift
remove last element eject Delete_Last pop_back pollLast pop array_pop pop pop pop
remove first element pop Delete_First pop_front pollFirst shift array_shift popleft shift shift
examine last element Last_Element back peekLast $array end last
examine first element First_Element front peekFirst $array reset first

Read more about this topic:  Double-ended Queue

Famous quotes containing the word operations:

    “There is a patent office at the seat of government of the universe, whose managers are as much interested in the dispersion of seeds as anybody at Washington can be, and their operations are infinitely more extensive and regular.”
    —Henry David Thoreau (1817–1862)

    “It may seem strange that any road through such a wilderness should be passable, even in winter, when the snow is three or four feet deep, but at that season, wherever lumbering operations are actively carried on, teams are continually passing on the single track, and it becomes as smooth almost as a railway.”
    —Henry David Thoreau (1817–1862)

    “You can’t have operations without screams. Pain and the knife—they’re inseparable.”
    —Jean Scott Rogers. Robert Day. Mr. Blount (Frank Pettingell)