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Course

Learn #"tight">

Define and reuse logic with functions and scope variables for effective data access.

4.66 out of 5 stars
This course includes
7,247 learners enrolled
This course includes

  • Skill level

    Beginner

  • Time to complete

    Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary
     
    3 hours

  • Projects

    3

  • Prerequisites

    None

About this course

Continue your JavaScript learning journey with Learn #"button">

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Syllabus

2 lessons • 3 projects • 2 quizzes

  • Certificate of completion available with Plus or Pro

    Earn a certificate of completion and showcase your accomplishment on your resume or LinkedIn.

The platform

Hands-on learning

Animated GIF of an AI provided error explanation within Codecademy's learning environment
An AI-generated hint within the instructions of a Codecademy project
Animated GIF of Codecademy's Job Readiness Checker tool generating a compatibility report for a senior software engineer role
Animated GIF of building a phone screen interview using Codecademy's Interview Simulator
A fill-in-the-blank JavaScript question in a Codecademy assessment

Projects in this course

Meet the creator of the course
Kenny Lin
Software Engineer at Codecademy
Kenny is the Domain Manager for the Web Development Domain at Codecademy. He contributed to a wide range of courses and paths at Codecademy, including JavaScript, Bootstrap, Handlebars, Phaser.js, Go, Swift, TypeScript, and Lua.

Earn a certificate of completion

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  • Share with your networkEasily add certificates of completion to your LinkedIn profile to share your accomplishments.

Learn #"true">4.7
4.66 out of 5 stars
251 ratings
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  • The progress I have made since starting to use codecademy is immense! I can study for short periods or long periods at my own convenience - mostly late in the evenings.
    Chris
    Codecademy Learner@ USA
  • I felt like I learned months in a week. I love how Codecademy uses learning by practice and gives great challenges to help the learner to understand a new concept and subject.
    Rodrigo
    Codecademy Learner@ UK
  • Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.
    John-Andrew
    Codecademy Learner@ USA

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Join over 50 million learners and start Learn #"button" type="button">Start

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Unlock additional features with a paid plan

  • Practice Projects

    Guided projects that help you solidify the skills and concepts you're learning.

  • Assessments

    Auto-graded quizzes and immediate feedback help you reinforce your skills as you learn.

  • Certificate of Completion

    Earn a document to prove you've completed a course or path that you can share with your network.
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