Working With JavaScript Rest Operator

Lab Steps

Introduction to JavaScript Labs
Destructuring an Object Using the Rest Operator
Destructuring an Array Using the Rest Operator
Adding a Rest Parameter to a Function

The hands-on lab is part of this learning path

Ready for the real environment experience?

Time Limit45m


In this lab, you will be working with the JavaScript Rest Operator.  The rest operator is a syntax with the purpose of capturing individual values and placing them into a data collection.

The rest operator is often used in conjunction with destructuring data collections.

The rest operator is sometimes referred to as the rest parameter.  It can be used as a function parameter to capture excess values that are passed as arguments.


Learning Objectives

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

  • Use the rest operator to make a new object from the remaining object properties by using destructuring.
  • Use the rest operator to destructure and create a new array from an existing array.
  • Use the rest operator as a function parameter.

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
Learning paths30

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.

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