hands-on labWorking with JavaScript Functions
Get guided in a real environmentPractice with a step-by-step scenario in a real, provisioned environment.
Learn and validateUse validations to check your solutions every step of the way.
See resultsTrack your knowledge and monitor your progress.
Lab steps
Introduction to JavaScript Labs
Write a function declaration
Call function with arguments
Write a function expression
Call a function expression with an argument
Write an arrow function
Call an arrow function with an argument
Lab description

In this lab, you will be working with JavaScript functions. A function is a block of code designed to perform a specific coding task.

In this lab, you will write function declarations and expressions. Each function will have you use console.log() to display the resulting value.

Learning Objectives

Upon completion of this lab, you will be able to:

  • Write Function Declarations
  • Write Function Expressions
  • Understand Arguments and Parameters
  • Invoke Functions

Intended Audience

  • Beginners learning front-end development
  • Software Engineers who need to learn front-end technologies to expand their skillset


The following courses/courses and labs can ensure your success:

About the author
Farish Kashefinejad
Full-Stack Development Content Creator
Learning Paths

Farish has worked in the EdTech industry for over six years. He is passionate about teaching valuable coding skills to help individuals and enterprises succeed.

Previously, Farish worked at 2U Inc in two concurrent roles. Farish worked as an adjunct instructor for 2U’s full-stack boot camps at UCLA and UCR. Farish also worked as a curriculum engineer for multiple full-stack boot camp programs. As a curriculum engineer, Farish’s role was to create activities, projects, and lesson plans taught in the boot camps used by over 50 University partners. Along with these duties, Farish also created nearly 80 videos for the full-stack blended online program.

Before 2U, Farish worked at Codecademy for over four years, both as a content creator and part of the curriculum experience team.

Farish is an avid powerlifter, sushi lover, and occasional Funko collector.

Covered topics