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

New No-Code Track! 🚀start learning today!

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

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

  • Treehouse Logo
  • Plans
    Chevron
    • For Individuals
    • For Businesses
    • For Schools
    • For Libraries
    • For Military
  • Library
    Chevron
    • All Courses
    • Tracks
    • College Credit
  • Techdegree
    Chevron
    • Overview
    • Front End Development
    • Full Stack JavaScript
    • Data Analysis
    • UX Design
    • Python
  • Community
    Chevron
    • Code Adventures
    • Discord
    • Forum
    • Success Stories
    • Treehouse Links
    • 100 Days of Code
  • 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 College Credit
  • Overview Front End Web Development Full Stack JavaScript Python Development Data Analysis UX Design
  • Code Adventures Discord Forum Success Stories Treehouse Links 100 Days of Code
  • 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
      • • AI
      • • Android
      • • 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
  • Christopher Coscina
    Christopher Coscina
    5,611 Points

    My code is correct but I keep receiving an error

    Posted February 7, 2019 1:35am by Christopher Coscina
    Christopher Coscina
    5,611 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

    1 Answer

  • Amy Shah
    Amy Shah
    25,337 Points

    I am not able to do the second part of this question which is to make Display result a lambda function

    Posted March 10, 2017 11:10pm by Amy Shah
    Amy Shah
    25,337 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

    0 Answers

  • Frantyk Andrii
    Frantyk Andrii
    35,423 Points

    Action and Func challange step2

    Posted March 1, 2017 7:22pm by Frantyk Andrii
    Frantyk Andrii
    35,423 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

    3 Answers

  • luke hammer
    luke hammer
    25,513 Points

    I'm very confused on passing more than one item to a Lamda. Looking for a point in the right dirrection

    Posted October 12, 2016 1:08am by luke hammer
    luke hammer
    25,513 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

    1 Answer

  • Shelley Hicklin
    Shelley Hicklin
    22,460 Points

    Trouble refactoring

    Posted September 27, 2016 3:17pm by Shelley Hicklin
    Shelley Hicklin
    22,460 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

    2 Answers

  • Derek Etnyre
    Derek Etnyre
    20,822 Points

    Difficult time thinking through the refactoring process

    Posted July 14, 2016 6:17pm by Derek Etnyre
    Derek Etnyre
    20,822 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

    2 Answers

  • Giulio Vannini
    Giulio Vannini
    21,922 Points

    This challenge is making fun of me..

    Posted July 4, 2016 9:46am by Giulio Vannini
    Giulio Vannini
    21,922 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

    2 Answers

  • Jabran Noor
    Jabran Noor
    32,306 Points

    I am trying to write lambda expression for Action, but it is not compiling.

    Posted June 23, 2016 8:17pm by Jabran Noor
    Jabran Noor
    32,306 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

    2 Answers

  • Rohit Gopalan
    Rohit Gopalan
    81,945 Points

    Issues with Lambda Functions in Linq

    Posted May 27, 2016 5:56am by Rohit Gopalan
    Rohit Gopalan
    81,945 Points
    • C#
    • Querying With LINQ
    • Functional Programming in C#
    • Lambda Expressions

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

© 2025 Treehouse Island, Inc.