Node.js Array Add Element

Description

Click the following links for the tutorial for Array and Add Element.

1. Add method to Array to check if it contains a value
2. Add Array.push if needed
3. Add array Dimension
4. Extends the Array object, creating a "addItem" method on it.
5. Add new method contains to Array
6. Add elements from another array
7. Add where method to Array
8. Adds the element to the array.