String methods (upcase, downcase, strip) in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to convert the string to uppercase.

Ruby

text = "hello"
result = text.[1]

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

Aupcase

Bdowncase

Ccapitalize

Dstrip

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'downcase' instead of 'upcase' changes letters to lowercase.

The upcase method converts all letters in the string to uppercase.

2fill in blank

medium

Complete the code to remove spaces from the start and end of the string.

Ruby

text = "  hello  "
result = text.[1]

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

Astrip

Bupcase

Cdowncase

Dchomp

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'chomp' removes newline characters, not spaces.

The strip method removes spaces from both the start and end of the string.

3fill in blank

hard

Fix the error in the code to convert the string to lowercase.

Ruby

text = "HELLO"
result = text.[1]

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

Acapitalize

Bupcase

Cstrip

Ddowncase

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'upcase' changes letters to uppercase, which is not what we want here.

The downcase method converts all letters in the string to lowercase.

4fill in blank

hard

Fill both blanks to convert the string to lowercase and remove spaces.

Ruby

text = "  HeLLo  "
result = text.[1].[2]

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

Adowncase

Bstrip

Cupcase

Dcapitalize

Attempts:

3 left

💡 Hint

Common Mistakes

Reversing the order may still work but is less common.

First, downcase converts all letters to lowercase, then strip removes spaces from both ends.

5fill in blank

hard

Fill all three blanks to convert the string to uppercase, remove spaces, and then lowercase it.

Ruby

text = "  HeLLo  "
result = text.[1].[2].[3]

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

Aupcase

Bstrip

Cdowncase

Dcapitalize

Attempts:

3 left

💡 Hint

Common Mistakes

Using capitalize instead of upcase or downcase.

The string is first converted to uppercase with upcase, then spaces are removed with strip, and finally converted to lowercase with downcase.