Count the time I've added up in my work textfile.

counter.js

var fs = require('fs'),
	async = require('async');

fs.readFile('work.txt', 'utf8', function(err, data){
	if(err){
		throw err;
	}
	
	var lines = data.split('\n');
	var iterator = function(item, callback){
		var matcher = item.match(/ (\d{1}(\.\d{1,3})?)( \(.*\))?$/)[0];
		callback(null, parseFloat(matcher));
	};
	async.map(lines, iterator, function(err, results){
		var reduction = function(memo, number, callback){
			callback(null, memo+number);
		};
		async.reduce(results, 0.0, reduction, function(err, sum){
			console.log(sum);
		});
	});
});