Times method for counted repetition in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print "Hello" 3 times using the times method.

Ruby

3.[1] do
  puts "Hello"
end

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Aeach

Bloop

Ctimes

Drepeat

Attempts:

3 left

💡 Hint

Common Mistakes

Using each which is for collections, not numbers.

Using loop which creates an infinite loop.

Using repeat which is not a Ruby method.

The times method runs the block the specified number of times. Here, 3.times runs the block 3 times.

2fill in blank

medium

Complete the code to print numbers from 0 to 4 using the times method.

Ruby

5.[1] do |i|
  puts i
end

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Atimes

Brepeat

Cloop

Deach

Attempts:

3 left

💡 Hint

Common Mistakes

Using each which is for collections, not integers.

Using loop which does not yield iteration count.

Using repeat which is not a Ruby method.

The times method yields numbers from 0 up to one less than the number. Here, it yields 0 to 4.

3fill in blank

hard

Fix the error in the code to print "Hi" 4 times using the times method.

Ruby

4.times [1]
  puts "Hi"
end

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A{ |i| do }

Bdo

Cfor

Dwhile

Attempts:

3 left

💡 Hint

Common Mistakes

Using while or for which are different loop constructs.

Adding block parameters incorrectly.

The times method requires a do or curly braces {} to start the block. Here, do is correct.

4fill in blank

hard

Fill both blanks to create a hash with numbers as keys and their squares as values using times.

Ruby

squares = {}
5.[1] do |i|
  squares[i] = i[2]2
end

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Atimes

B+

C**

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using + instead of exponentiation.

Using each instead of times.

times repeats the block 5 times with i from 0 to 4. The square is calculated with i**2.

5fill in blank

hard

Fill all three blanks to create a hash with uppercase letters as keys and their index as values using times.

Ruby

letters = {}
26.[1] do |i|
  letters[('A'.ord[2] i).[3]] = i
end

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Atimes

B+

Cord

Dchr

Attempts:

3 left

💡 Hint

Common Mistakes

Using ord instead of chr to convert back to letter.

Using each instead of times.

Mixing up ord and chr.

times repeats 26 times. 'A'.ord gives ASCII code of 'A'. Adding i moves through letters. .chr converts code back to letter.