Class: DSA::ArrayStack

Inherits:
Object
  • Object
show all
Defined in:
lib/DSA/stack_and_queue.rb

Overview

The stack data structure Delegate the job to ruby Array, no need to worry about its growing and shrinking.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ArrayStack

Returns a new instance of ArrayStack.



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# File 'lib/DSA/stack_and_queue.rb', line 7

def initialize
  @data = Array.new
end

Instance Method Details

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/DSA/stack_and_queue.rb', line 23

def empty?
  @data.empty?
end

#length ⇒ Object 



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# File 'lib/DSA/stack_and_queue.rb', line 27

def length
  @data.length
end

#pop ⇒ Object 



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# File 'lib/DSA/stack_and_queue.rb', line 15

def pop
  @data.pop
end

#push(e) ⇒ Object 



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# File 'lib/DSA/stack_and_queue.rb', line 11

def push(e)
  @data.push e
end

#top ⇒ Object 



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# File 'lib/DSA/stack_and_queue.rb', line 19

def top
  @data.last
end