Hash creation with symbols and strings in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a hash with a symbol key :name and value "Alice".

Ruby

person = { [1] => "Alice" }

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

Aname:

B"name"

Cname

D:name

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string "name" instead of a symbol :name.

Using a bare word name without quotes or colon.

The symbol :name is used as a key in the hash.

2fill in blank

medium

Complete the code to create a hash with a string key "age" and value 30.

Ruby

person = { [1] => 30 }

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

A:age

Bage

C"age"

Dage:

Attempts:

3 left

💡 Hint

Common Mistakes

Using a symbol :age instead of a string "age".

Using a bare word age without quotes or colon.

The string "age" is used as a key in the hash.

3fill in blank

hard

Fix the error in the hash creation by completing the code with the correct symbol key.

Ruby

person = { [1]: "Bob" }

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

Aname

B"name"

C:name

Dname:

Attempts:

3 left

💡 Hint

Common Mistakes

Using :name: which is invalid syntax.

Using "name": which is a string key, not symbol shorthand.

When using the symbol key shorthand, the key is written without the colon prefix, just the name.

4fill in blank

hard

Fill both blanks to create a hash with symbol key :city and string key "country".

Ruby

location = { [1] => "Paris", [2] => "France" }

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

A:city

B"city"

C"country"

D:country

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up symbol and string keys.

Using bare words without colon or quotes.

The first key is a symbol :city, the second key is a string "country".

5fill in blank

hard

Fill all three blanks to create a hash with symbol keys :name and :age, and string key "city".

Ruby

person = { [1] => "Eve", [2] => 28, [3] => "Berlin" }

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

A:name

B:age

C"city"

D"age"

Attempts:

3 left

💡 Hint

Common Mistakes

Using string "age" instead of symbol :age.

Mixing up quotes and colons for keys.

The keys are symbol :name, symbol :age, and string "city".