peek {arrayhelpers} | R Documentation |
TODO: implement as reference class?
Note: pop
only removes elements. To retrieve them, use peek
.
peek(x, an, n = 1L) pop(x, an, n = 1L) push (x, an) <- value
x |
the object |
an |
attribute holding the stack |
n |
numer of element to peek at and numer of elements to pop (delete), respectively |
value |
list of things to push on the stack. |
push
and pop
: the object with stack in list an
pushed/popped by the n
elements
peek
: the n
th stack element (without popping!)
Claudia Beleites