Skip to main content

Notice: Workspaces are undergoing maintenance and are temporarily unavailable.

🚀 In our NEW AI Bootcamp you'll build a working app in 28 days, no experience required. Free to all subscription levels.

✨ Earn college credits in Cybersecurity, JS, HTML, CSS and Python

Join the Treehouse affiliate program and earn 25% recurring commission! 🤑

  • Treehouse Logo
    • For Individuals
    • For Businesses
    • For Schools
    • For Libraries
    • For Military
    • All Courses
    • Tracks
    • AI Bootcamp
    • College Credit
    • Techdegree Bootcamps
    • Front End Development
    • Full Stack JavaScript
    • Code Adventures
    • Discord
    • Forum
    • Success Stories
    • Treehouse Links
    • 100 Days of Code
    • Explore
    • Career Toolbox
    • Free Treehouse Near Me
    • Affiliates
    • Blog
    • Support
    • About
    • Learn
    • Beginner's Guide to Coding
    • Data Analysis with SQL & Python
    • Front-End Web Development
    • Python Programming Basics
    • Techdegree Bootcamp Overview
    • UX Design Fundamentals
    • AI Tools for Beginners
  • For Individuals For Businesses For Schools For Libraries For Military
  • All Courses Tracks AI Bootcamp College Credit
  • Techdegree Bootcamps Front End Web Development Full Stack JavaScript
  • Code Adventures Discord Forum Success Stories Treehouse Links 100 Days of Code
  • Explore Career Toolbox Free Treehouse Near Me Affiliates Blog Support About
    Learn Beginner's Guide to Coding Data Analysis with SQL & Python Front-End Web Development Python Programming Basics Techdegree Bootcamp Overview UX Design Fundamentals AI Tools for Beginners
  • Sign In
  • Free Trial
Instagram Twitter Facebook YouTube LinkedIn
Loading banner... Start your free trial at Treehouse
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • AI
      • • APIs
      • • Coding for Kids
      • • College Credit
      • • Computer Science
      • • CSS
      • • Data Analysis
      • • Databases
      • • Design
      • • Development Tools
      • • Digital Literacy
      • • Game Development
      • • Go Language
      • • HTML
      • • Java
      • • JavaScript
      • • Learning Resources
      • • Machine Learning
      • • No-Code
      • • PHP
      • • Professional Growth
      • • Python
      • • Quality Assurance
      • • React
      • • Ruby
      • • Security
      • • Swift
      • • Vibe Coding
  • K .
    K .
    2,357 Points

    Question about full_name method

    Posted August 22, 2019 12:57am by K .
    K .
    2,357 Points
    • Ruby
    • Build an Address Book in Ruby
    • Class Design
    • Contact Class: Part 1

    1 Answer

  • Shreemangal Sethi
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    Shreemangal Sethi
    Full Stack JavaScript Techdegree Student 15,552 Points

    Instance Variable

    Posted July 14, 2019 8:47pm by Shreemangal Sethi
    .a{fill-rule:evenodd;}techdegree
    Shreemangal Sethi
    Full Stack JavaScript Techdegree Student 15,552 Points
    • Ruby
    • Build an Address Book in Ruby
    • Class Design
    • Contact Class: Part 1

    1 Answer

  • Alexander Mooney
    Alexander Mooney
    7,321 Points

    Why do we use attr_writer instead of attr_accessor?

    Posted June 6, 2016 9:36pm by Alexander Mooney
    Alexander Mooney
    7,321 Points
    • Ruby
    • Build an Address Book in Ruby
    • Class Design
    • Contact Class: Part 1

    2 Answers

  • Sean Flanagan
    Sean Flanagan
    33,237 Points

    What does += mean?

    Posted November 14, 2015 4:11pm by Sean Flanagan
    Sean Flanagan
    33,237 Points
    • Ruby
    • Build an Address Book in Ruby
    • Class Design
    • Contact Class: Part 1

    2 Answers

  • Patrick Shushereba
    Patrick Shushereba
    10,911 Points

    Ruby address book question

    Posted September 8, 2015 12:51am by Patrick Shushereba
    Patrick Shushereba
    10,911 Points
    • Ruby
    • Build an Address Book in Ruby
    • Class Design
    • Contact Class: Part 1

    1 Answer

  • kabir k
    PLUS
    kabir k
    Courses Plus Student 18,036 Points

    Questions about the Contact class

    Posted August 5, 2015 7:31pm by kabir k
    kabir k
    Courses Plus Student 18,036 Points
    • Ruby
    • Build an Address Book in Ruby
    • Class Design
    • Contact Class: Part 1

    2 Answers

Posting to the forum is only allowed for members with active accounts.
Please sign in or sign up to post.

Techdegree

  • Front End Web Development
  • Full Stack JavaScript
SEE ALL

Tracks

  • Learn to Code for Beginners
  • Beginning Python
  • Beginning SQL
  • Beginning Java
SEE ALL

Courses

  • JavaScript Basics
  • Intro to HTML & CSS
  • Python Basics
  • CSS Layout
SEE ALL

About Us

  • About
  • Blog
  • Community
  • Stories
  • Contact
  • Gift Card

Explore

  • Plans
  • Affiliates
  • Perks
  • Shop
  • Free Treehouse Near Me
  • Treehouse for Libraries
  • Treehouse for Businesses

Treehouse is an online technology education platform founded in 2011. Treehouse offers more than 700 self-paced, video-based courses in web development, programming, data analysis, design, and AI, plus two project-based bootcamp programs in Front End Web Development and Full Stack JavaScript. Individual Treehouse plans start at $25 per month and include a 7-day free trial. Treehouse serves individual learners, businesses, schools, and public libraries. Cardholders at participating U.S. public libraries can use Treehouse for free. Select Treehouse courses, offered with University Pathways International, are recommended for college credit by ACE and NCCRS. Treehouse learners earn digital certificates for completed Tracks.

Terms & Conditions · Privacy · © 2026 Treehouse Island, Inc.
  • Twitter
  • YouTube
  • Facebook
  • LinkedIn
  • Instagram
  • Discord