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Labs

Guided: Manipulate the DOM Safely with TypeScript Type Assertions

Ready to take control of the DOM with confidence? In this Manipulate the DOM Safely with TypeScript Type Assertions code lab, you’ll build an interactive to-do list application using TypeScript to safely manipulate the DOM. You’ll learn to select elements with proper type assertions, apply event listeners with accurate type checks, manipulate element properties and styles type-safely, and prevent common runtime issues through compile-time type correctness. Through hands-on tasks, you’ll create a robust, beginner-friendly web app while mastering TypeScript’s power for safe DOM manipulation. Let’s get started!

Labs

Path Info

Level
Clock icon Beginner
Duration
Clock icon 30m
Published
Clock icon Jun 26, 2025

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Table of Contents

Zach is currently a Senior Software Engineer at VMware where he uses tools such as Python, Docker, Node, and Angular along with various Machine Learning and Data Science techniques/principles. Prior to his current role, Zach worked on submarine software and has a passion for GIS programming along with open-source software.

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

Follow along with the author’s guided walkthrough and build something new in your provided environment!

Did you know?

On average, you retain 75% more of your learning if you get time for practice.