Page 1 — Lesson 4: Maps, Objects, Preloading, and Eval Advanced Image and Object Work
In the previous lesson, we looked at the many different things you can do with text and strings. Today we'll focus on two different types of data: images and objects. By the end of this lesson, you'll know how to:
Use image maps with JavaScript
Preload images to speed up your image swaps
Create your own objects to make big scripts comprehensible
Use associative arrays to rapidly access all the objects in your scripts
