Looping through an array with step

Question

I want to look at every n-th elements in an array. In C++, I\'d do this:

for(int x = 0; x

        

Answer 1

What about:

> [1, 2, 3, 4, 5, 6, 7].select.each_with_index { |_,i| i % 2 == 0 }
=> [1, 3, 5, 7]

Chaining of iterators is very useful.