Read multiple lines from a textfile and put each into an array

processPfids.js

var fs = require('fs');

function readLines(input, func){
	var remaining = '';
	var array = [];
	input.on('data', function(data){
		remaining += data;
		var index = remaining.indexOf('\n');
		while(index > -1){
			var line = remaining.substring(0, index);
			remaining = remaining.substring(index + 1);
			func(line, array);
			index = remaining.indexOf('\n');
		}
	});

	input.on('end', function(){
		if(remaining.length > 0){
			func(line, array);			
		}
		printData(array);
	});
}

function func(data, array){
	array.push(data);
}

function printData(data){
	for(var i = 0; i < data.length; i++){
		data[i].replace('\r', '');
		data[i].replace('\n', '');
		data[i] = parseInt(data[i])
	}
	var result = data.join(', ');
	console.log(result);
}

var input = fs.createReadStream('hostingpfids.txt');
readLines(input, func);