What is Ruby - Interactive Quiz & Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print "Hello, Ruby!".

Ruby

puts [1]

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

A'Hello Ruby'

BHello, Ruby!

C"Hello, Ruby!"

DHello Ruby

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the text.

Using puts without quotes for strings.

In Ruby, to print text, you use puts with the text inside quotes.

2fill in blank

medium

Complete the code to assign the number 10 to variable x.

Ruby

x = [1]

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

A"10"

Bten

Cx

D10

Attempts:

3 left

💡 Hint

Common Mistakes

Putting numbers inside quotes makes them strings.

Using variable name instead of value.

In Ruby, to assign a number, write the number without quotes.

3fill in blank

hard

Fix the error in the code to add 5 to variable y.

Ruby

y = 7
sum = y [1] 5

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

A+

B-

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using - instead of + changes the operation.

Using * or / does multiplication or division.

Use + to add numbers in Ruby.

4fill in blank

hard

Fill both blanks to create a hash with keys as symbols and values as strings.

Ruby

person = { [1]: [2] }

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

A:name

B"Alice"

C"Bob"

D:age

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings as keys without colon.

Not quoting string values.

In Ruby, hash keys can be symbols like :name, and values can be strings like "Alice".

5fill in blank

hard

Fill all three blanks to define a method that returns the square of a number.

Ruby

def [1](num)
  return num [2] num
end

result = [3](4)

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

Asquare

B*

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using + instead of * for multiplication.

Calling method with wrong name.

Define method 'square', multiply num by num, then call square(4).