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

Join our Live Career-Building Workshop: Launch Your Tech-Adjacent Career! ⭐ Register here!

🌟 Dreaming of a bright future? 🎓 Ask about the Treehouse Scholarship program! 🚀

Curious which AI tools Treehouse developers love? ⚙️ Check them out!

🫡 Treehouse for Military offers discounts to Veterans, service members and their families!

  • Treehouse Logo
  • Plans
    Chevron
    • For Individuals
    • For Businesses
    • For Schools
    • For Libraries
    • For Military
  • Library
    Chevron
    • All Courses
    • Tracks
  • Techdegree
    Chevron
    • Overview
    • Front End Development
    • Full Stack JavaScript
    • Data Analysis
    • UX Design
    • Python
  • Community
    Chevron
    • 100 Days of Code
    • Live Sessions
    • Code Adventures
    • Discord
    • Forum
    • Success Stories
    • Treehouse Links
  • Resources
    Chevron
    • Career Toolbox
    • CodeForward
    • Free Treehouse Near Me
    • Jobs
    • Blog
    • Support
    • About
  • For Individuals For Businesses For Schools For Libraries For Military
  • All Courses Tracks
  • Overview Front End Web Development Full Stack JavaScript Python Development Data Analysis UX Design
  • 100 Days of Code Live Sessions Code Adventures Discord Forum Success Stories Treehouse Links
  • Career Toolbox CodeForward Free Treehouse Near Me Jobs Blog Support About
  • Sign In
  • Free Trial
Instagram Twitter Facebook YouTube LinkedIn
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • 21st Century Skills
      • • AI
      • • Android
      • • APIs
      • • Business
      • • C#
      • • Computer Science
      • • CSS
      • • Data Analysis
      • • Databases
      • • Design
      • • Development Tools
      • • Digital Literacy
      • • Equity, Diversity, and Inclusion (EDI)
      • • Go Language
      • • HTML
      • • Java
      • • JavaScript
      • • Learning Resources
      • • Machine Learning
      • • PHP
      • • Python
      • • Quality Assurance
      • • React
      • • Ruby
      • • Security
  • Michael Dean
    Michael Dean
    821 Points

    Double Double is producing errors in playgrounds and not accepted in challenge

    Posted October 16, 2019 5:49pm by Michael Dean
    Michael Dean
    821 Points
    • iOS
    • Functions in Swift
    • Adding Power to Functions
    • Function Scope

    2 Answers

  • bytepunch
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    bytepunch
    iOS Development with Swift Techdegree Student 5,114 Points

    Broken link

    Posted May 6, 2019 7:06pm by bytepunch
    .a{fill-rule:evenodd;}techdegree
    bytepunch
    iOS Development with Swift Techdegree Student 5,114 Points
    • iOS
    • Functions in Swift
    • Adding Power to Functions
    • Function Scope

    1 Answer

  • klutch37
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    klutch37
    iOS Development with Swift Techdegree Student 1,319 Points

    Not a question

    Posted November 14, 2018 10:03pm by klutch37
    .a{fill-rule:evenodd;}techdegree
    klutch37
    iOS Development with Swift Techdegree Student 1,319 Points
    • iOS
    • Functions in Swift
    • Adding Power to Functions
    • Function Scope

    0 Answers

  • Navdeep Singh
    PLUS
    Navdeep Singh
    Courses Plus Student 7,487 Points

    "secondArray" is a variable

    Posted June 12, 2018 1:26am by Navdeep Singh
    Navdeep Singh
    Courses Plus Student 7,487 Points
    • iOS
    • Functions in Swift
    • Adding Power to Functions
    • Function Scope

    0 Answers

  • datagekko
    datagekko
    2,686 Points

    Xcode Interace for Functions

    Posted February 16, 2018 10:54am by datagekko
    datagekko
    2,686 Points
    • iOS
    • Functions in Swift
    • Adding Power to Functions
    • Function Scope

    2 Answers

  • mrtroy
    mrtroy
    8,069 Points

    backtick reserved keyword

    Posted July 30, 2017 6:10pm by mrtroy
    mrtroy
    8,069 Points
    • iOS
    • Functions in Swift
    • Adding Power to Functions
    • Function Scope

    5 Answers

  • Manish Giri
    Manish Giri
    16,266 Points

    Are function parameters immutable in Swift?

    Posted June 21, 2017 12:33am by Manish Giri
    Manish Giri
    16,266 Points
    • iOS
    • Functions in Swift
    • Adding Power to Functions
    • Function Scope

    0 Answers

  • lvwdhydynw
    lvwdhydynw
    6,443 Points

    Is there a point in not having an argument without a label?

    Posted March 15, 2017 6:59pm by lvwdhydynw
    lvwdhydynw
    6,443 Points
    • iOS
    • Functions in Swift
    • Adding Power to Functions
    • Function Scope

    1 Answer

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

    Treehouse

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

See Full Catalogue

Techdegree

  • Front End Web Development
  • Full Stack JavaScript
  • Python Development
  • Data Analysis
  • UX Design

Tracks

  • Learn to Code for Beginners
  • Beginning Python
  • Beginning SQL
  • Beginning Java
  • ...see more

Courses

  • JavaScript Basics
  • Intro to HTML & CSS
  • Python Basics
  • CSS Layout
  • ...see more

Explore

  • Plans
  • Perks
  • Free Treehouse Near Me
  • Treehouse for Libraries
  • Treehouse for Businesses
  • Twitter
  • YouTube
  • Facebook
  • LinkedIn
  • Instagram
Terms & Conditions | Privacy

© 2024 Treehouse Island, Inc.