Parsing CSV to Array of Hashes

I am trying to parse a CSV file and create an array of hashes. I implemented it using my own code but I don't think it is optimal. I am trying to use CSV-Parser but am only outputting an Array of Array's (not an Array of Hashes/Objects).

Here is an example of my first attempt without the library:

var fs = require('fs');
var readCSVData = function(data){
  var contactsArray = data.split("\n"); 
  var contactsArrayOfHashes = [];

for(var i=1; i < contactsArray.length; i++){
        var singleData = contactsArray[i].split(",");   

            contactsArrayOfHashes.push({
                first_name: singleData[0],
                last_name: singleData[1],
                months_since_contact: singleData[2],
                email_address: singleData[3]
            });
    }
    return contactsArrayOfHashes;
};

fs.readFile("contacts.csv","utf8", function(err, data){

    var csvData = readCSVData(data);
    console.log(csvData);       

});

Here is my attempt with the CSV Package (this is where I am only getting an Array of Arrays)

var fs = require('fs');
var csv = require("csv");

fs.readFile("contacts.csv","utf8", function(err, data){
    var friendsList = [];
    var csvData = readCSVData(data);
    csv.parse(data, function(err, parseData){
        for(var i=1; i < parseData.length; i++){
            friendsList.push(parseData[i]);
        }
    })

console.log(friendsList);

});

CSV File:

first_name,last_name,months_since_contact,email_address
John,Doe,0,john@john.com

How can I create an Array of Hashes using the CSV npm? Is there a way to map my array indexes with columns?

Ideally, I would like to map columns to rows

ex: my Array's appear to be Array's but they are mapped to my main fields in my CSV File like this:

var CSVData = [John,Doe,0,john@john.com]
CSVData[0]["email_address"] outputs --> john@john.com

I believe I've used this format before with ruby's CSV Class