WordCount - Non-funcational

wordcount.nonfunctional.js

var para = 'How much wood would a woodchuck chuck\nIf a woodchuck could chuck wood?\nHe would chuck, he would, as much as he could,\nAnd chuck as much as a woodchuck would\nIf a woodchuck could chuck wood.';

function Words(paragraph) {
	this.paragraph = paragraph;	
};	

Words.prototype.countWords = function() {
	var mapWords = {},		    
		arrWords = this.createArrayOfWords(this.paragraph);

	arrWords.forEach(function(word) {
		var count = mapWords[word];
		mapWords[word] = isNaN(count) ? 1 : (count + 1);			
	});
	
	return mapWords;
};

Words.prototype.createArrayOfWords = function(para) {
	var arrWords = [],
		arrSentences = this.parseSentence(para);

	for(var i = 0; i < arrSentences.length; i++) {
		var words = this.parseWord(arrSentences[i]);
		words = this.cleanWord(words);
		arrWords = arrWords.concat(words);
	}		
	return arrWords;
}

Words.prototype.cleanWord = function(words) {
	for(var i = 0; i < words.length; i++) {
		words[i] = words[i].replace(/[.,?]$/, '').toLowerCase();
	}
	return words;		
}

Words.prototype.parseWord = function(sentence) {
	var words = sentence.split(' ');
	return words;		
};

Words.prototype.parseSentence = function(para) {
	var sentence = para.split('\n');
	return sentence;
};

var words = new Words(para);
console.log(words.countWords());