To_s method for string representation in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a method that returns a string representation of the object.

Ruby

def to_s
  return [1]
end

Drag options to blanks, or click blank then click option'

A"Hello"

Bputs "Hello"

Cprint "Hello"

Dp "Hello"

Attempts:

3 left

💡 Hint

Common Mistakes

Using puts or print instead of returning a string.

The to_s method should return a string. Using "Hello" returns the string correctly.

2fill in blank

medium

Complete the code to return the string representation of the instance variable @name.

Ruby

def to_s
  @name[1]
end

Drag options to blanks, or click blank then click option'

A.to_i

B.to_f

C.to_a

D.to_s

Attempts:

3 left

💡 Hint

Common Mistakes

Using .to_i or other conversions that do not return strings.

The to_s method should return a string, so we convert @name to string using .to_s.

3fill in blank

hard

Fix the error in the to_s method to correctly return a string representation.

Ruby

def to_s
  "Name: " + [1]
end

Drag options to blanks, or click blank then click option'

Ato_s

[e-mail]_s

C@name

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using @name without conversion causes error if it's not a string.

To concatenate strings, @name must be converted to string using .to_s.

4fill in blank

hard

Fill both blanks to create a to_s method that returns a formatted string with name and age.

Ruby

def to_s
  "Name: [1], Age: [2]"
end

Drag options to blanks, or click blank then click option'

A#@name

B@name

C#@age

D@age

Attempts:

3 left

💡 Hint

Common Mistakes

Using instance variables without interpolation syntax inside strings.

Using string interpolation with #@name and #@age inserts the instance variables into the string.

5fill in blank

hard

Fill all three blanks to create a to_s method that returns a detailed string with name, age, and city.

Ruby

def to_s
  "Name: [1], Age: [2], City: [3]"
end

Drag options to blanks, or click blank then click option'

A#@name

B#@age

C#@city

D@city

Attempts:

3 left

💡 Hint

Common Mistakes

Using instance variables without interpolation or mixing interpolation and direct variables.

Use string interpolation for all instance variables inside the string to return a detailed description.