Skip to main content

NOTICE: On Friday Nov 6, Workspaces will be temporarily unavailable for maintenance.

🚀 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
  • David Lin
    David Lin
    35,864 Points

    Vending Machine bug & fix: Stepper's value needs to be reset to 1 in reset()

    Posted November 5, 2016 10:11pm by David Lin
    David Lin
    35,864 Points
    • iOS
    • Build a Vending Machine App in Swift 2.0
    • Using the Vending Machine
    • Updating the Quantity

    0 Answers

  • Michael Murray
    Michael Murray
    6,037 Points

    HELP! I have a CRASH at Updating Quantity of the Vending Machine App

    Posted August 16, 2016 3:00pm by Michael Murray
    Michael Murray
    6,037 Points
    • iOS
    • Build a Vending Machine App in Swift 2.0
    • Using the Vending Machine
    • Updating the Quantity

    1 Answer

  • Soner Güler
    Soner Güler
    16,505 Points

    Quantity stepper should have been reset to 1

    Posted May 17, 2016 12:58pm by Soner Güler
    Soner Güler
    16,505 Points
    • iOS
    • Build a Vending Machine App in Swift 2.0
    • Using the Vending Machine
    • Updating the Quantity

    1 Answer

  • mattcleary2
    mattcleary2
    19,953 Points

    Where has the code gone??

    Posted March 7, 2016 4:15pm by mattcleary2
    mattcleary2
    19,953 Points
    • iOS
    • Build a Vending Machine App in Swift 2.0
    • Using the Vending Machine
    • Updating the Quantity

    1 Answer

  • Stijn van Lieshout
    Stijn van Lieshout
    3,646 Points

    Why call updateTotalPriceLabel() inside reset method?

    Posted March 3, 2016 9:30pm by Stijn van Lieshout
    Stijn van Lieshout
    3,646 Points
    • iOS
    • Build a Vending Machine App in Swift 2.0
    • Using the Vending Machine
    • Updating the Quantity

    1 Answer

  • Keli'i Martin
    Keli'i Martin
    8,227 Points

    Small usability issue with the UIStepper

    Posted February 20, 2016 10:58pm by Keli'i Martin
    Keli'i Martin
    8,227 Points
    • iOS
    • Build a Vending Machine App in Swift 2.0
    • Using the Vending Machine
    • Updating the Quantity

    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