Research the DOM
The Big Idea
You've used the DOM hands-on — now take time to consolidate what you've learned. Reading and watching resources about the DOM will help you explain it clearly, which is exactly what your technical blog post this sprint asks you to do.
Your Roadmap
| Section | Time | Required? |
|---|---|---|
| Research the DOM | 1 hour | ⚑ Required |
Research the DOM
Use the resources below to deepen your understanding of what the DOM is and how JavaScript interacts with it.
Your goal: be able to explain the DOM in your own words — what it is, how it relates to HTML and CSS, and how JavaScript uses it.
Take notes as you go. You'll use them in your blog post.
Suggested resources:
- ◎ Kirupa — JavaScript, the Browser, and the DOM — videos, diagrams, and articles
- ◎ MDN — Introduction to the DOM
- ◎ MDN — Event reference — the different kinds of events you can listen for
Questions to guide your writing:
- What is the DOM?
- How does it relate to HTML and CSS?
- How does JavaScript interact with it?
- What surprised you, or what clicked for you during this primer?
How to know you've nailed it
| Level | You can... | ||
|---|---|---|---|
| 🪨 | Intro Climb | Describe the DOM in one or two sentences in your own words | ⚑ Required |
| 🧗 | Core Ascent | Explain how the DOM connects HTML, CSS, and JavaScript — with an example | ⚑ Required |
| 🏔️ | Summit | Explain what an event listener is and give a real use case for one | ◎ Optional |
The Big Idea (revisited)
The DOM is the bridge between HTML and JavaScript. Understanding it clearly — well enough to explain it to someone else — is the foundation for everything you'll build in the DOM challenges ahead.