ga-wdi-boston / cs Goto Github PK

Preparation

1. Fork and clone this repository.
+2. Install dependencies with `npm install && bundle install`

- ## Language details

- In languages that have a "nothing" type, `nil` in Ruby, `undefined` in
- JavaScript, or `None` in Python, `empty?` need not be implemented.  Instead,
- check for that type when calling `pop` or `dequeue`.

{
- "name": "ga-wdi-boston.node-template",
+ "name": "ga-wdi-boston.cs",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "start": "node bin/index.js"
  },

## Queue

A queue implements a first in, first out data store (FIFO).

### Discussion: Queue

Queue operations:

-   `empty?` - check to see if there are any items in a queue.
-   `enqueue` - add an item to the tail of a queue.
-   `dequeue` - remove an item from the head of a queue.

Visualizing queue implementations:

-   As an [array](http://www.cs.usfca.edu/~galles/visualization/QueueArray.html)
-   As a [list](http://www.cs.usfca.edu/~galles/visualization/QueueLL.html)

- ### Code along: Implementing a queue in JavaScript
+ ### Lab: Implementing a queue in Ruby

+ ### Code along: Implementing a queue in JavaScript
- ### Lab: Implementing a queue in Ruby