Skip to main content

🚀 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
  • Peter Huang
    Peter Huang
    5,427 Points

    Why did this practice came after finishing functions when this practice speaks about " arrays "?

    Posted October 27, 2022 7:55pm by Peter Huang
    Peter Huang
    5,427 Points
    • JavaScript
    • One Solution

    0 Answers

  • Yazeed Hani
    Yazeed Hani
    5,002 Points

    Alternative Answer for other students

    Posted June 13, 2021 10:52pm by Yazeed Hani
    Yazeed Hani
    5,002 Points
    • JavaScript
    • One Solution

    0 Answers

  • Terence Fong
    Terence Fong
    1,499 Points

    Blank page result

    Posted February 8, 2021 4:16pm by Terence Fong
    Terence Fong
    1,499 Points
    • JavaScript
    • One Solution

    2 Answers

  • Carl Dawkins
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    Carl Dawkins
    Web Development Techdegree Student 5,190 Points

    planets.map(planet => createPlanetHTML(planet)).join('');

    Posted December 14, 2020 2:06am by Carl Dawkins
    .a{fill-rule:evenodd;}techdegree
    Carl Dawkins
    Web Development Techdegree Student 5,190 Points
    • JavaScript
    • One Solution

    1 Answer

  • Gerald Susanteo
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    Gerald Susanteo
    Front End Web Development Techdegree Student 7,117 Points

    last line

    Posted September 7, 2020 9:38am by Gerald Susanteo
    .a{fill-rule:evenodd;}techdegree
    Gerald Susanteo
    Front End Web Development Techdegree Student 7,117 Points
    • JavaScript
    • One Solution

    2 Answers

  • ja5on
    ja5on
    10,339 Points

    whole solution

    Posted June 28, 2020 5:15pm by ja5on
    ja5on
    10,339 Points
    • JavaScript
    • One Solution

    1 Answer

  • ja5on
    ja5on
    10,339 Points

    How did he know to place planet.name inside like this ${planet.name}

    Posted June 28, 2020 5:02pm by ja5on
    ja5on
    10,339 Points
    • JavaScript
    • One Solution

    1 Answer

  • ja5on
    ja5on
    10,339 Points

    Practice Template Literals practise session

    Posted June 22, 2020 3:33pm by ja5on
    ja5on
    10,339 Points
    • JavaScript
    • One Solution

    1 Answer

  • Mahmoud Nasser
    Mahmoud Nasser
    5,507 Points

    Template Literals WorkShop

    Posted July 2, 2018 12:19pm by Mahmoud Nasser
    Mahmoud Nasser
    5,507 Points
    • JavaScript
    • One Solution

    3 Answers

  • M Khan
    M Khan
    7,024 Points

    Can you pls explain the map parameter used in line 45?

    Posted May 19, 2018 8:13pm by M Khan
    M Khan
    7,024 Points
    • JavaScript
    • One Solution

    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