word_count

word_count.js

var fs = require('fs')
, completedTasks = 0
, tasks = []
, wordCounts = {}
, filesDir = './text';

function countWordsInText(text) {
	var words = text.toString().toLowerCase().split(/\W+/).sort();
	for (var index in words) {
		var word = words[index];
		if (word) {
			wordCounts[word] = (wordCounts[word]) ? 
				wordCounts[word] + 1 : 1;
		}
	}
}

fs.readdir(filesDir, function  (err, files) {

	if (err) throw err;
	for (var index in files) {
		var task = (function (file){
			return function() {
				fs.readFile(file, function  (err, text) {
					if (err) throw err;
					countWordsInText(text);
					checkIfComplete();
				});
			}
		})(filesDir + '/' + files[index]);
		tasks.push(task);
	}
	for (var task in tasks) {
		tasks[task]();
	}

});