01. Introduction

Need to Know

To be successful in this section, there are a couple of things from the previous section that you need to know. You need to have a solid grasp of selecting DOM elements using:

• document.getElementById()
• document.querySelector()

Also, remember the Node Interface and the Element interface we went over in the previous section? Understanding how an interface determines the properties and methods for an element and understanding how to research an interface's properties and methods will be vital in this lesson.

If you get stuck, just jump back to the previous section that's giving you a bit of trouble.

Project Repository

Throughout this course, you'll learn skills and techniques to access and modify page content. There's no better way to demonstrate these skills than through trying them out on a real website! So I've created a copy of just the Udacity homepage. The project is on GitHub, so please clone the project to your local so that you can follow along.

Project repository: https://github.com/udacity/course-JS-and-the-DOM