Dig method for nested access in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to access the nested value using dig.

Ruby

data = { user: { profile: { name: 'Alice' } } }
puts data.[1](:user, :profile, :name)

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

Afetch

Bdig

Cget

Daccess

Attempts:

3 left

💡 Hint

Common Mistakes

Using fetch instead of dig causes errors if keys are missing.

Using get or access which are not Ruby Hash methods.

The dig method allows you to safely access nested hash values by passing the keys in order.

2fill in blank

medium

Complete the code to safely get the city from nested data using dig.

Ruby

address = { location: { city: 'Paris', country: 'France' } }
city = address.[1](:location, :city)
puts city

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

Afetch

Bget

Cdig

Dfind

Attempts:

3 left

💡 Hint

Common Mistakes

Using fetch which raises error if key is missing.

Using get or find which are not valid for nested hash access.

dig safely returns the nested value or nil if any key is missing.

3fill in blank

hard

Fix the error in the code to correctly use dig for nested access.

Ruby

profile = { info: { age: 30 } }
age = profile.[1][:info, :age]
puts age

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

Adig

Bfetch

Cget

Daccess

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets instead of parentheses with dig.

Using fetch or get which do not support multiple nested keys.

The dig method should be called with parentheses and keys as arguments, not with square brackets.

4fill in blank

hard

Fill both blanks to create a nested hash and access a value using dig.

Ruby

data = { [1]: { [2]: 'Ruby' } }
puts data.dig(:language, :name)

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

Alanguage

Bname

Ccode

Dversion

Attempts:

3 left

💡 Hint

Common Mistakes

Using keys that do not match the dig arguments.

Swapping the keys order.

The keys :language and :name match the dig arguments to access the value 'Ruby'.

5fill in blank

hard

Fill all three blanks to use dig to access a deeply nested value.

Ruby

config = { settings: { display: { brightness: 75 } } }
value = config.[1](:settings, [2], [3])
puts value

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

Adig

B:display

C:brightness

D:contrast

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect keys that do not exist in the hash.

Using fetch or square brackets instead of dig.

Use dig with keys :settings, :display, and :brightness to get the value 75.