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
We'll get the ball rolling with image maps.
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