JavaScript for循环,关于索引

Question

如何改变这种循环,所以它的运行了i = 12,18,24,30和36唯一的？

for (var i = 12; i < 36; i++) {
   console.log(i);
}

Answer 1

for (var i = 12; i <= 36; i += 6) {

   console.log(i);

}