can anyone explain frame by frame what happen inside the loop if I put number from 1 to 10 ?

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num = gets.to_i

last = gets.to_i

while (num <= last)
prime_flag = true

x = 2
while (x <= num/ 2)
if (num % x == 0)
    prime_flag = false
    break
end
x += 1
end
if prime_flag
    puts num
end

 num += 1
 end

Posted 14-May-15 2:50am

Member 11687521

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OriginalGriff · Answer 1 · 2015-05-14T03:06:00

No.
Line by line explanations take far, far too long - typically a paragraph per line of code!
Would you want to sit down and write out that much for no good reason? Because I wouldn't! It's not even our code - you could ask the person who wrote it, but I suspect they won't want to either.

Instead, use the debugger to follow the code through and see if you can work it out yourself. You will learn a lot more that way than just getting an explanation of code you have copied from someone else...