Lab Challenge

Web APIs Challenge

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Time Limit




About Lab Challenges

Lab challenges are hands-on labs with the gloves off. You jump into an auto-provisioned cloud environment and are given a goal to accomplish. No instructions, no hints. To pass, you'll have a limited time to demonstrate your problem-solving skills and get the checks that inspect the state of your lab environment.

Challenge Description

Web APIs Core Challenge

Demonstrate your knowledge of the Web APIs with three levels of increasingly difficult challenges.

Level I

  1. Using different DOM Selectors to select specific elements
  2. Retrieving text content of a selected element

Level II

The following level covers the following:

  1. Creating an element
  2. Setting the text content of an element
  3. Adding an event listener to a button and invoking a function
  4. Removing an element from a page

Level III

The following level covers the following:

Implementing the Fetch API to query third party APIs

Intended audience

  • Front-End Engineers
About the Author
Learning paths24

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.