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.

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

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

  • 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
  • Gonzalo Rodríguez
    Gonzalo Rodríguez
    8,679 Points

    Why is this not a valid answer: "React.PropTypes.string.isRequired,"

    Posted May 2, 2018 1:30am by Gonzalo Rodríguez
    Gonzalo Rodríguez
    8,679 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    1 Answer

  • Greg Kaleka
    Greg Kaleka
    39,021 Points

    React.js required string - bug or am I doing something wrong?

    Posted April 24, 2018 3:51am by Greg Kaleka
    Greg Kaleka
    39,021 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    2 Answers

  • Fuli Fuli
    Fuli Fuli
    1,004 Points

    The quiz in Treehouse is saying this is incorrect??? How? It looks right to me

    Posted April 12, 2018 8:48am by Fuli Fuli
    Fuli Fuli
    1,004 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    1 Answer

  • Gregory Engelbrecht
    Gregory Engelbrecht
    1,917 Points

    answer to question 3 was: name: React.PropTypes.string.isRequired, what is wrong with my answer?

    Posted February 26, 2018 10:33pm by Gregory Engelbrecht
    Gregory Engelbrecht
    1,917 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    1 Answer

  • jesicamarquez
    jesicamarquez
    5,148 Points

    How do you type check with a PropType?

    Posted February 13, 2018 12:14am by jesicamarquez
    jesicamarquez
    5,148 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    1 Answer

  • Detroit Labs
    Detroit Labs
    13,559 Points

    The test asks me 2 finish Player.propTypes by making "name" a required strng. React.PropTypes.string.isRequired is wrng?

    Posted January 3, 2018 7:33pm by Detroit Labs
    Detroit Labs
    13,559 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    1 Answer

  • Kukuh Aldyanto
    PLUS
    Kukuh Aldyanto
    Courses Plus Student 1,491 Points

    I think this is the right answer, why is it not?

    Posted December 11, 2017 9:24am by Kukuh Aldyanto
    Kukuh Aldyanto
    Courses Plus Student 1,491 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    0 Answers

  • Christopher Johnson
    Christopher Johnson
    1,515 Points

    Cannot pass "React.PropTypes.string.isRequired," question - always says my answer is incorrect.

    Posted December 1, 2017 4:09am by Christopher Johnson
    Christopher Johnson
    1,515 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    1 Answer

  • DEVSUNILPRASAD SANDIPAM
    DEVSUNILPRASAD SANDIPAM
    1,231 Points

    PropTypes.string is to define property type String or not?

    Posted October 5, 2017 8:59am by DEVSUNILPRASAD SANDIPAM
    DEVSUNILPRASAD SANDIPAM
    1,231 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    0 Answers

  • Tatiana Ramirez
    Tatiana Ramirez
    220 Points

    I'm following the instructions to make the name prop type required and to be a string but I keep getting this one wrong.

    Posted August 9, 2017 3:47pm by Tatiana Ramirez
    Tatiana Ramirez
    220 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    0 Answers

  • nick rodriguez
    nick rodriguez
    1,898 Points

    proptypes.string.isRequired did not work for one of the quesitons. I tried camel case , etc...

    Posted July 26, 2017 8:00pm by nick rodriguez
    nick rodriguez
    1,898 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    1 Answer

  • William Blair
    PLUS
    William Blair
    Courses Plus Student 3,542 Points

    How do I ensure the property “name” is a required string for the Player Component other than React.PropTypes.string?

    Posted June 19, 2017 2:38pm by William Blair
    William Blair
    Courses Plus Student 3,542 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    1 Answer

  • Nathan Knight
    Nathan Knight
    1,777 Points

    I'm not sure why "React.PropTypes.string.isRequired," is incorrect.

    Posted April 18, 2017 9:18am by Nathan Knight
    Nathan Knight
    1,777 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    2 Answers

  • Ashi A
    Ashi A
    2,531 Points

    Not sure why the Quiz marks this as incorrect (Properties Review Quiz in React)

    Posted January 26, 2017 8:15am by Ashi A
    Ashi A
    2,531 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    2 Answers

  • Lean Rasmussen
    Lean Rasmussen
    11,060 Points

    Is required

    Posted September 25, 2016 12:48pm by Lean Rasmussen
    Lean Rasmussen
    11,060 Points
    • JavaScript
    • React Basics (retired)
    • Thinking in Components
    • Properties Review

    0 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