hands-on lab
Working With JavaScript Spread Operator
Difficulty: Intermediate
Duration: Up to 45 minutes
Students: 119
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.
Description
In this lab, you will be working with the JavaScript Spread Operator. The spread operator is a syntax with the purpose of unpacking values from an iterable data collection into individual elements. The spread operator can be used as a copying mechanism in JavaScript, which can lead to some unintended side effects.
Learning Objectives
Upon completion of this lab, you will be able to:
- Use the spread operator to make a new object from an existing object.
- Use the spread operator to merge two arrays into one new array.
Intended Audience
- Beginners learning front-end development
- Software Engineers who need to learn front-end technologies to expand their skillset
Prerequisites
The following courses/courses and labs can ensure your success:
Covered topics
Lab steps
Introduction to JavaScript Labs
Creating a New Car Object Using the Spread Operator
Replacing Property Values of the New Car Object
Adding an Additional Property to the New Car Object
Merging Two Arrays Using the Spread Operator