Module: Stackable

Peek at the top of the stack.

  a = [1, 2, 3]
  a.peek          #=> 3
  a               #=> [1, 2, 3]

    # File lib/core/facets/stackable.rb, line 81
81:   def peek
82:     slice(-1)
83:   end

Poke item onto the stack.

  a = [2, 3]
  a.poke(1)       #=> [1, 2, 3]

  TODO: Better name (besides unshift)?

    # File lib/core/facets/stackable.rb, line 69
69:   def poke(x)
70:     insert(0,x)
71:   end

Pop item off stack.

  a = [1, 2, 3]
  a.pop           #=> 3
  a               #=> [1, 2]

    # File lib/core/facets/stackable.rb, line 37
37:   def pop
38:     splice(-1)
39:   end

Pull item off the stack.

  a = [1, 2, 3]
  a.pull          #=> 1
  a               #=> [2, 3]

    # File lib/core/facets/stackable.rb, line 56
56:   def pull
57:     slice(0)
58:   end

Push item onto the stack.

  a = [1, 2]
  a.push(3)       #=> [1, 2, 3]

    # File lib/core/facets/stackable.rb, line 46
46:   def push(x)
47:     insert(-1,x)
48:   end

shift()

Alias for pull

unshift(x)

Alias for poke

Stackable