coin_change problem

coin_change.js

function coin_change(coinType, coinToChange) {
	if (coinToChange <= 0)
		return 0;

	var arr = [];
	for (var i = 0; i < coinType.length; i++) {
		if (coinToChange >= coinType[i])
			arr.push(1 + coin_change(coinType, (coinToChange - coinType[i])));
	}

	return Math.min.apply(Math, arr);
}

var coinType = [33, 24, 12, 5, 1];
var coinToChange = 36;

coin_change(coinType, coinToChange);