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
  • Justin Sze Wei Teo
    Justin Sze Wei Teo
    9,418 Points

    Question on transaction[:amount] , accessing value inside a hash

    Posted October 30, 2016 10:24am by Justin Sze Wei Teo
    Justin Sze Wei Teo
    9,418 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    4 Answers

  • vo thi quynh yen
    vo thi quynh yen
    3,129 Points

    @transactions.each do |transaction| balance += transaction[:amount] end

    Posted May 29, 2016 6:07pm by vo thi quynh yen
    vo thi quynh yen
    3,129 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    3 Answers

  • Unsubscribed User
    Unsubscribed User
    11,042 Points

    Adding a space causes an error!

    Posted April 23, 2016 3:42pm by Unsubscribed User
    Unsubscribed User
    11,042 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    1 Answer

  • Erik Nuber
    Erik Nuber
    20,629 Points

    Using a hash symbol in the Balance Method

    Posted March 28, 2016 11:42pm by Erik Nuber
    Erik Nuber
    20,629 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    1 Answer

  • Julia Fitzer
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    Julia Fitzer
    Front End Web Development Techdegree Student 5,574 Points

    Part 3: Keeping Our Balance; in Ruby Objects and Classes

    Posted March 19, 2016 2:16pm by Julia Fitzer
    .a{fill-rule:evenodd;}techdegree
    Julia Fitzer
    Front End Web Development Techdegree Student 5,574 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    1 Answer

  • Kaiyang Lin
    Kaiyang Lin
    5,573 Points

    Overwriting to_s function in a class

    Posted January 7, 2016 3:09am by Kaiyang Lin
    Kaiyang Lin
    5,573 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    1 Answer

  • Eliza SJ
    Eliza SJ
    4,587 Points

    What is the purpose of 'return balance' ? What is 'return' actually doing ?

    Posted October 9, 2015 6:06pm by Eliza SJ
    Eliza SJ
    4,587 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    2 Answers

  • Frank Kuester
    Frank Kuester
    3,002 Points

    Why does 'puts bank_account' return the value of the overwritten to_s method?

    Posted July 15, 2015 5:28pm by Frank Kuester
    Frank Kuester
    3,002 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    1 Answer

  • Mohammed Ali
    Mohammed Ali
    11,134 Points

    to_s error

    Posted June 24, 2015 11:50am by Mohammed Ali
    Mohammed Ali
    11,134 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    2 Answers

  • Adrian Manteza
    Adrian Manteza
    2,527 Points

    Part 3:Keeping Our Balance What is the role/function of this method?

    Posted June 2, 2015 5:41pm by Adrian Manteza
    Adrian Manteza
    2,527 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    4 Answers

  • 4Ctech Admin
    4Ctech Admin
    5,062 Points

    Question about balance method

    Posted February 3, 2015 11:53am by 4Ctech Admin
    4Ctech Admin
    5,062 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    1 Answer

  • Rich S
    Rich S
    1,936 Points

    @transactions.push(description: description, amount: amount) What's the purpose behind the colons?

    Posted December 29, 2014 2:48am by Rich S
    Rich S
    1,936 Points
    • Ruby
    • Ruby Objects and Classes
    • Build a Bank Account Class
    • Part 3: Keeping Our Balance

    1 Answer

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