function compare(num1, num2, num3) {
if (num3 > num2 && num1 > num3) {
return num1 + ' is the biggest number';
} else if (num2 > num1 && num2 > num3) {
return num2 + ' is the biggest number';
} else {
return num3 + ' is the biggest number';
}
}
var results = compare(10, 20, 30);
console.log(results);