Rubocop for linting in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to run Rubocop on a Ruby file named example.rb.

Ruby

rubocop [1]

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

Aexample.rb

B--fix

C--version

D--help

Attempts:

3 left

💡 Hint

Common Mistakes

Using options like --fix or --version instead of the file name.

Not specifying any file to check.

To check a Ruby file with Rubocop, you run rubocop example.rb.

2fill in blank

medium

Complete the command to automatically fix offenses in script.rb using Rubocop.

Ruby

rubocop [1] script.rb

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

A--fix

B--auto-correct

C--version

D--help

Attempts:

3 left

💡 Hint

Common Mistakes

Using --fix which is not a valid Rubocop option.

Using --version or --help which do not fix code.

The --auto-correct option tells Rubocop to fix offenses automatically.

3fill in blank

hard

Fix the error in the Rubocop command to check all Ruby files in the current directory.

Ruby

rubocop [1]

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

A*.rb

B*.py

Call.rb

Drubyfiles

Attempts:

3 left

💡 Hint

Common Mistakes

Using file extensions for other languages like .py.

Using incorrect file names or folder names.

Using *.rb tells Rubocop to check all Ruby files in the current folder.

4fill in blank

hard

Fill both blanks to create a Rubocop configuration file that disables the Style/StringLiterals cop.

Ruby

Style/StringLiterals:
  Enabled: [1]
  EnforcedStyle: [2]

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

Afalse

Btrue

Cdouble_quotes

Dsingle_quotes

Attempts:

3 left

💡 Hint

Common Mistakes

Setting Enabled to true when wanting to disable.

Confusing quote styles.

Setting Enabled: false disables the cop. EnforcedStyle: single_quotes sets preferred quotes style.

5fill in blank

hard

Fill all three blanks to write a Rubocop command that checks app.rb, shows only offenses with severity 'error', and uses color output.

Ruby

rubocop [1] app.rb --severity [2] --[3]

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

A--only

Berror

Ccolor

D--auto-correct

Attempts:

3 left

💡 Hint

Common Mistakes

Using --auto-correct instead of --color for colored output.

Not specifying severity correctly.

The --only option limits checks, error filters severity, and --color enables colored output.