Join Joe Marini for an in-depth discussion in this video Creating arrays with $A(), part of Prototype and script.aculo.us Essential Training.
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The same way that Prototype provides utility functions for selecting elements in…the document, such as the $, $$() and $F() operators, Prototype also provides…utility functions for working with collections, such as $A(), $R() and $H(). …And we are going to take a look at the $A() in this lesson.…$A() is used to create arrays.…It's a shorthand construct for creating array elements.…
Also, the arguments array that is a hidden part of every function call,…that's also not a true array.…Again, it looks like one.…It has a length property, you can index it using brackets, but it's not a true array.…
- Retrieving and manipulating web page elements
- Handling web page events and creating custom events
- Traversing the DOM
- Creating and handling AJAX requests
- Using script.aculo.us controls such as Autocompleters, Sliders, and Visual Effects
- Building complex page features like data filtering and image rotators
Skill Level Beginner
1. Overview of Prototype
Introducing Prototype4m 59s
2. Retrieving Page Content
4. Working with Collections
5. Using Prototype's DOM Features
6. Working with Events
7. Prototype and AJAX
8. script.aculo.us and Prototype UI
9. Putting It All Together
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