Prototype Tutorial
Prototype Useful Resources
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- Prototype - Periodical Execution
- Prototype - Expressing Ranges
- Prototype - AJAX Support
- Prototype - JSON Support
- Prototype - Form Management
- Prototype - Event Handling
- Prototype - Enumerating
- Prototype - Templating
- Prototype - Basic Object
- Prototype - Hash processing
- Prototype - Array Processing
- Prototype - Strings Processing
- Prototype - Number Processing
- Prototype - Element Object
- Prototype - Utility Methods
- Prototype - Useful Features
- Prototype - Short Overview
- Prototype - Home
Prototype Useful Resources
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- Who is Who
- Computer Glossary
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Prototype - Useful Features
Prototype - Useful Features
Let s now look at what Prototype can do specifically for us to develop a Dynamic Web Apppcation.
Cross Browser Support
While doing JavaScript programming, it is required to handle different Web Browsers differently. Prototype Library has been written in such a way that it takes care of all the compatibipty issues and you can do cross browser programming without any hassle.
The Document Object Model
Prototype provides helper methods that ease some of the strain of DOM programming. Using Prototype, you can manipulate DOM very easily.
HTML Forms
With Ajax, other input mechanisms such as drag and drop, can be used as part of a conversation between the browser and the server. With conventional JavaScript programming, it is difficult to capture these inputs and pass them to the server. Prototype provides a set of utipties for working with HTML forms.
JavaScript Events
Prototype provides some excellent cross-browser support while coding events, and also extends the Function object to make it easy to work with event handpng.
Ajax Utipties
The most important feature of Prototype is it s support for Ajax. All major browsers support a version of the XMLHttpRequest object that makes Ajax possible, either as an ActiveX component or as a native JavaScript object.
XMLHttpRequest, however, exposes the HTTP protocol at a very low level, which gives the developer a lot of power, but also requires her to write a lot of code in order to do simple things.
Prototype uses it s own object inheritance system to provide a hierarchy of Ajax helper objects, with more generic base classes being subclassed by more focused helpers that allow the most common types of Ajax request to be coded in a single pne.
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