Question

How to write a loop with a specified step in Ruby

Answer 1

3.step(10, 2) {|n| print "#{n}, "}


#
# run:
# 
# 3, 5, 7, 9,  
#
 

 

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Answer 2

(3..10).step(2) {|n| print "#{n}, "}


#
# run:
# 
# 3, 5, 7, 9,  
#
 

 

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Answer 3

for n in (3..10).step(2)
  print "#{n}, "
end


#
# run:
# 
# 3, 5, 7, 9,  
#
 

 

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Answer 4

for n in 3.step(by: 2, to: 10)
  print "#{n}, "
end


#
# run:
# 
# 3, 5, 7, 9,  
#
 

 

70+ SQL courses for beginners and professionals