thinking about heuristic scoring for words against strings

fuzzy_thinking.js

var pretend_db = [
 'hello guys lets hang out soon',
 'hello ben',
 'what is up?',
 'hey when are you coming to the bay?',
 'yo',
 'when are we getting together?',
 'hig',
 'oh noes',
 'whenever yuo thnk is gud',
 'whatever',
 'yeah'
];

function fuzzy_score(search, data) {
	var score = 0;
	var dataTokensChars = data.split(/\s+/gm).map(function(token) { return token.split(''); });
	return search.split(/\s+/gm).map(function(token) {
			return token.split('');
		}).map(function(searchChars) {
			var result = dataTokensChars.map(function(dataChars) {
				var lastHighest = 0;
				var matches = 0;
				var subSequentMatches = 0;
				searchChars.forEach(function(c) {
					var index = dataChars.indexOf(c);
					if (index >= 0) {
						matches += 1;
						if (index > lastHighest) {
							lastHighest = index;
							subSequentMatches += 1;
						}
					}
				})
				return { seqMatches: subSequentMatches, matches: matches };
			}).reduce(function(stats, cur) {
				stats.seqMatches += cur.seqMatches;
				stats.matches += cur.matches;
				return stats;
			});
			return result;
		}).reduce(function(stats, cur) {
			stats.seqMatches += cur.seqMatches;
			stats.matches += cur.matches;
			return stats;
		});
}

console.log(pretend_db.map(function(data) { console.log(fuzzy_score("whenver you think", data), data); }))