Create a randomized string with a designated length

randomizerLength.js

function randomizer(multiplier, iterations, maxLength) {
	var storage = "";
	var truncated = "";
	var multiplier;
    	var iterations;
	var maxNumLength;
	
	var args = arguments;
	var argsLength = args.length;
	
	var defaults = {
    	multiplier: 10,
	    iterations: 10
	    maxNumLength: 10
	};
	
	if (args.length >= 3) {
	    // just get the first three args
		multiplier = args[0]
		iterations = args[1];
		maxNumLength = args[2];
	} else if (args.length === 2) {
	    multiplier = args[0];
	    maxNumLength = iterations = args[1];
	} else if (args.length === 1) {
	    multiplier = args[0];
	}
	
	// don't want 0 values
	multiplier = multiplier || defaults.multiplier;
	iterations = iterations || defaults.iterations;
	maxNumLength = maxNumLength || defaults.maxNumLength;
	
	for (var i = 0; i < iterations; i++) {
		var num = Math.round(Math.random() * multiplier);
		storage += num;
	}
	
	console.log('original : ', storage);
	console.log('length:    ', storage.length);
	truncated = storage.substring(0, maxNumLength);
	console.log('truncated: ', truncated);
	console.log('length:    ', truncated.length);
	
	return {
	    original: storage,
	    truncated: truncated
	};
}