Ruby style guide essentials - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the recommended indentation style in Ruby?

Use 2 spaces per indentation level. Avoid tabs to keep code consistent and readable.

beginner

How should method names be formatted in Ruby?

Method names should be written in snake_case, using lowercase letters and underscores to separate words.

intermediate

When should you use single quotes vs double quotes for strings in Ruby?

Use single quotes for simple strings without interpolation or special symbols. Use double quotes when you need string interpolation or special characters like \n.

intermediate

What is the preferred way to write blocks in Ruby?

Use curly braces {} for single-line blocks and do...end for multi-line blocks to improve readability.

beginner

How should you handle trailing whitespace and line length in Ruby code?

Avoid trailing whitespace at the end of lines. Keep lines shorter than 80 characters to maintain readability.

What is the correct indentation size recommended in Ruby style guides?

A 2 spaces

B 4 spaces

C 1 tab

D No indentation

Ruby style guides recommend using 2 spaces for indentation to keep code clean and consistent.

Which naming style is preferred for Ruby method names?

A camelCase

B PascalCase

C snake_case

D kebab-case

Ruby method names should use snake_case with lowercase letters and underscores.

When should you use double quotes for strings in Ruby?

A Always

B Only for single characters

C Never

D When the string contains interpolation or special characters

Double quotes allow string interpolation and special characters like newline \n.

Which block syntax is preferred for multi-line blocks in Ruby?

A do...end

B begin...end

C {}

D if...end

Use do...end for multi-line blocks to improve readability.

What is the recommended maximum line length in Ruby style guides?

A 100 characters

B 80 characters

C 120 characters

D No limit

Keeping lines under 80 characters helps maintain code readability.

Explain the key Ruby style guide rules for indentation, method naming, and string quoting.

Think about how to keep code clean and easy to read.

Describe the preferred Ruby block syntax and line length recommendations.

Consider readability and clarity in your answer.