• Home
  • Free Trial
  • Sign In
  • Techdegree
  • Tracks
  • Library
  • Community
  • Support
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • 21st Century Skills
      • • Android
      • • APIs
      • • Business
      • • C#
      • • Computer Science
      • • CSS
      • • Data Analysis
      • • Databases
      • • Design
      • • Development Tools
      • • Digital Literacy
      • • Equity, Diversity, and Inclusion (EDI)
      • • Go
      • • HTML
      • • Java
      • • JavaScript
      • • Learning Resources
      • • Machine Learning
      • • PHP
      • • Python
      • • Quality Assurance
      • • Ruby
      • • Security
  • Frank keane
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    Frank keane
    Full Stack JavaScript Techdegree Student 7,989 Points

    Why the curly braces for arrow function?

    Posted June 17, 2021 3:17pm by Frank keane
    .a{fill-rule:evenodd;}techdegree
    Frank keane
    Full Stack JavaScript Techdegree Student 7,989 Points
    • JavaScript
    • JavaScript Array Iteration Methods
    • Array Manipulation
    • Return a Single Value from an Array with reduce()

    1 Answer

  • Rick S
    Rick S
    10,318 Points

    Unexpected identifier error given to me with next challenge

    Posted February 26, 2021 7:33pm by Rick S
    Rick S
    10,318 Points
    • JavaScript
    • JavaScript Array Iteration Methods
    • Array Manipulation
    • Return a Single Value from an Array with reduce()

    3 Answers

  • Daniel Cranney
    Daniel Cranney
    11,599 Points

    I got the right answer for numberOf503 challenge, but it feels like a cheat. How else could I do it?

    Posted February 6, 2021 5:29pm by Daniel Cranney
    Daniel Cranney
    11,599 Points
    • JavaScript
    • JavaScript Array Iteration Methods
    • Array Manipulation
    • Return a Single Value from an Array with reduce()

    1 Answer

  • Zachary Davidson
    seal-mask
    .a{fill-rule:evenodd;}techdegree seal-36
    Zachary Davidson
    Full Stack JavaScript Techdegree Graduate 14,454 Points

    Why will my reduce method not work without defining the current value at 0

    Posted January 17, 2021 5:20pm by Zachary Davidson
    .a{fill-rule:evenodd;}techdegree seal-36
    Zachary Davidson
    Full Stack JavaScript Techdegree Graduate 14,454 Points
    • JavaScript
    • JavaScript Array Iteration Methods
    • Array Manipulation
    • Return a Single Value from an Array with reduce()

    1 Answer

  • Dwayne Bynum
    Dwayne Bynum
    10,408 Points

    Why does return count++ not work here

    Posted June 3, 2020 7:33pm by Dwayne Bynum
    Dwayne Bynum
    10,408 Points
    • JavaScript
    • JavaScript Array Iteration Methods
    • Array Manipulation
    • Return a Single Value from an Array with reduce()

    1 Answer

  • Peter Retvari
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    Peter Retvari
    Full Stack JavaScript Techdegree Student 8,392 Points

    I think you don't have to use if to solve the "Starts with G" challenge

    Posted August 28, 2018 7:43am by Peter Retvari
    .a{fill-rule:evenodd;}techdegree
    Peter Retvari
    Full Stack JavaScript Techdegree Student 8,392 Points
    • JavaScript
    • JavaScript Array Iteration Methods
    • Array Manipulation
    • Return a Single Value from an Array with reduce()

    1 Answer

  • Akash Sharma
    seal-mask
    .a{fill-rule:evenodd;}techdegree
    Akash Sharma
    Full Stack JavaScript Techdegree Student 14,147 Points

    return count + 1 vs. return count++

    Posted November 6, 2017 4:08pm by Akash Sharma
    .a{fill-rule:evenodd;}techdegree
    Akash Sharma
    Full Stack JavaScript Techdegree Student 14,147 Points
    • JavaScript
    • JavaScript Array Iteration Methods
    • Array Manipulation
    • Return a Single Value from an Array with reduce()

    3 Answers

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

See Full Catalogue

Techdegree

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

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

  • Perks
  • Treehouse for Libraries
  • Treehouse for Teams
  • Twitter
  • YouTube
  • Facebook
  • LinkedIn
  • Instagram
Terms & Conditions | Privacy

© 2021 Treehouse Island, Inc.