Generate a random integer between any two values

integerBetween.js

var integerBetween = function(x, y) {
	if ( typeof x !== "number" || typeof y !== "number") {
		console.log('integerBetween cannot accept NaN values');
		return false;
	}
	else {
	var lowerBound = Math.floor(x);
	var upperBound = Math.floor(y);
	return Math.floor(Math.random() * (upperBound - lowerBound + 1) + lowerBound);
	};
};