Loops

While Loop

i = 1
while i <= 5
  puts i
  i += 1
end

• Runs while condition is true.
  Output:

1
2
3
4
5

For Loop

for n in 1..5
  puts n
end

• 1..5 means range from 1 to 5.
  Output: 1 2 3 4 5

Each Loop

[1, 2, 3, 4, 5].each do |num|
  puts num * 2
end

• Iterates over each element.
  Output:

2
4
6
8
10