Predictable Random - Is Random Truly Random?

predictable-random.js

/**
 * Predictable Random - Is Random Truly Random?
 * @description - Not the cleanest code, but more of a proof of concept quick flesh out.
 * @author Timothy A. Perez <[email protected]>
 */
///////////////////////////////////////////////////
var sampleTest = (function a(limit, last, r, i, repeatLog) {
	if (!limit) {
		console.log('Result: ', repeatLog);
		repeatLog = null;
		return;
	}

	var x;

	if (i > limit) {
		var result = _.clone(repeatLog);
		repeatLog = null;
		return repeatLog;
	}

	x = _.sample(['a','b','c']);

	if (x === last) {
		r++;
	} else {
		if (r > 1) {
			repeatLog[last][r] = (!_.has(repeatLog[last], r)) ? 1 : repeatLog[last][r] + 1;
		}
		r = 1; // Restart Repeat Counter
		last = x;
	}

	a(--limit, last, r, i, repeatLog);

});

var runTest = function runtTest (sampleSize) {
	var repeatLog = { 'a':{}, 'b':{}, 'c': {} };
	// Quick and dirty load of LoDash if unavailable
	if (typeof _ === 'undefined') {
		var script = document.createElement('script');
		script.type = 'text/javascript';
		script.async = true;
		script.src = 'https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.1/lodash.js';
		script.onload = function(){
			sampleTest(sampleSize, 'a', 0,  1, repeatLog);
		};
		document.getElementsByTagName('head')[0].appendChild(script);
	} else {
		sampleTest(sampleSize, 'a', 0,  1, repeatLog);
	}
};