Ways to create Arrays:

1. simple constructor creates an empty array of zero length:
        myList = new Array();
                i. now you can assign values by index, e.g.:
                myList[0] = 2002;
                myList[1] = "Steve";
                        etc.
                ii. or assign them all at once with in a comma delimited list:
                myList = [2002, "Chris","Denise","Jenny","Pepper","Rudy"];

2. constructor with a single numeric argument creates an empty array with the specified number of empty elements:
        myList = new Array(5);
                        i. now you can assign values ...

3. constructor with comma-separated arguments:
        myList = new Array(2002, "Chris","Denise","Jenny","Pepper","Rudy");

4. simply assign a comma-separated list inside square brackets (an array literal) to a variable:
        myList = ["Chris","Denise","Jenny","Pepper","Rudy", 400 * Math.PI];

 

SPECIAL:

Create an ASSOCIATIVE ARRAY, a list of named elements (a.k.a, a hash):

        hash = new Array();
        hash["name"] = "john"
        hash["age"] = 27

All at once:

        hash = new Array();
        hash = {
                name: "john",
                age: 27
        }

Access Associative array:

        txt = hash["name"]

would set the value of the variable, txt, to "john".