[Ruby]2

Next!

The next keyword can be used to skip over certain steps in the loop. For instance, if we don't want to print out the even numbers, we can write:

for i in 1..5
  next if i % 2 == 0
  print i
end

1. In the above example, we loop through the range of 1 through 5, assigning each number to i in turn.
2. If the remainder of i / 2is zero, we go to the next iteration of the loop.
3. Then we print the value of i. This line only prints out 1, 3, and 5 because of the previous line.

ex)

* next에 지정된 것은 제외하므로 20부터 1씩 줄어드는 숫자의 목록 중 2로 나누었을 때 나머지가 1인 것을 제외한다. 즉 홀수를 제외하기 때문에 짝수만 나오게 된다.

The .times Iterator

The .times method is like a super compact for loop: it can perform a task on each item in an object a specified number of times.

For example, if we wanted to print out "Chunky bacon!" ten times, we might type

10.times { print "Chunky bacon!" }

We don't know why we would type that, but we could

참고 : codecademy.com