Loop

Regular:

# both 0 and 2 are inclusive

for count in 0..2

puts "Value of count is: #{count}"

end

# Output:

Value of count is: 0

Value of count is: 1

Value of count is: 2

Similar to Java for-each loop

• Java

int[] nums = { 'one', 'two', 'three', 'four' }

for(int num: nums){

System.out.println(num);

}

• Ruby

nums = ['one', 'two', 'three', 'four']

for num in nums

puts num

end

Times:

10.times { |i| puts "hello #{i}" }

Range

(1..10).each { |i| puts i }

Stop a Loop?

break # java: break;

Skip a loop?

next # java: continue

Redo?

• Restarts current iteration
• TODO

Retry?

• TODO