javascript death match: jquery v. prototype v. ext-js...
TRANSCRIPT
Fight Schedule• Rounds• Rules of the ring• Meet the boxers• Blow by blow breakdown• The bloody aftermath
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Rounds1.Library download size 2.AJAX features including JSON support3.DOM Manipulation4.Event support5.Form validation6.UI Components7.Documentation / Community Support
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Rules of the Ring
• Must support IE 6 (do we have to?)• Must be free to be used in my app (thank
you CF 8 for Ext-JS)• No throwing chairs! (Yes that means you
Steve Balmer!)4
IN THIS CORNER…
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JQuery
• First released early 2006 by John Resig• Currently has a lot of buzz• Recently backed by Microsoft• Focused on improving the interaction
between JavaScript and HTML (DOM)
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IN THIS CORNER…
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Prototype
• Started in 2005 by Sam Stephenson • Created as the JS library for Ruby on
Rails• Development backed by 37 Signals• Big emphasis on adding in ‘missing’
JavaScript features• All animations (and interactions) are in
Scriptaculous
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IN THIS CORNER…
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Spry• Created by Adobe and integrated with
Dreamweaver• Created to help designers provide more data
and interactivity to their pages• Three parts: Spry Data, Spry Widgets and
Spry Effects. They can be used together or independently of one another.
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AND IN THIS CORNER…
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Ext-JS• Jack Slocum created it from extensions to
YUI• Ext-JS 1.1 powers most of the built in UI
widgets in CF 8• Recently changed to a GPL license with
release of 2.0• Focused on providing powerful UI widgets
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Lets Get Ready To Rumble!
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Round 1: Download Size
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Download Size
JQuery
Ext-JS*
Prototype
Spry
0 150 300 450 600
87
100
560
56
Size (KB)
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Round 2: AJAX
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JQuery $.ajax(
{ type: "get", url: "../api/Contacts.cfc", data: { method: "GetContacts" },
dataType: "json", success: function( objResponse ){
if (objResponse.SUCCESS) { objSelf.ShowContacts( objResponse.DATA );
} else { objSelf.ShowErrors( objResponse.ERRORS ); } }, error: function( objRequest, strError ){ objSelf.ShowErrors(
[ "An unknown connection error occurred." ] ); } }
);
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Prototype
new Ajax.Request("../api/Contacts.cfc", { method: "get", parameters: { method: "GetContacts" }, onSuccess: function( transport ) { var json = transport.responseText.evalJSON(); if (json.SUCCESS){ ShowContacts( json.DATA ); } else { objSelf.ShowErrors( json.ERRORS ); } } });
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Spryvar dsContacts = new Spry.Data.JSONDataSet(
"../api/Contacts.cfc?method=getContacts", { path:"DATA" }
);
<div spry:region="dsContacts"> <table id="contact-list" cellspacing="2" cellpadding="5" border="1"> <thead> <tr> <th>Name</th> <th>Hair</th> <th>Actions</th> </tr> </thead> <tbody id="table-content"> <tr spry:repeat="dsContacts"> <td>{NAME}</td> <td>{HAIR}</td> <td><a href="#">Delete</a></td> </tr> </tbody> </table> </div>
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Round 3: DOM Manipulation
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Examples• jQuery
–$(“#bodyText”)• Prototype
–$(“bodyText”)–$$(“.classname”)
• Spry–Spry.$$("#bodyText")
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Round 4: Event Support
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JQuery• $( "#contact-form" ).submit(function() {});• $( document ).trigger( "contactsUpdated" );
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Prototype• $(“id”).observe(“customEvent”,
function() { alert(“customEvent handled”) } );
• $(“id”).fire(“customEvent”);
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Spry
Spry.Utils.addLoadListener(function(){ Spry.Utils.addEventListener("openLink", "click", function(e)
{ cp.open(); return false; }, false); Spry.Utils.addEventListener("closeLink", "click", function(e)
{ cp.close(); return false; }, false);
cp = new Spry.Widget.CollapsiblePanel('cp', { contentIsOpen: false });});
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Round 5: Form validation
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Prototype• Extension: Really Easy Form Validation• Uses CSS class names to indicate validation
rules• Use title attribute for the error message
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JQuery• Plugin: Validation• Uses CSS class names for the validation
rules
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Spry• Has widgets for the different form elements• Widgets have different states based if the
content is valid• The different states correspond to different
CSS classes for display of messages
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Round 6: UI Components
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UI Components• jQuery has jQuery UI• Prototype has Scriptaculous• Spry has built-in widgets• Ext-JS has components
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Components Compared
Tree Grid Tabs Datepicker Sortable Effects
Spry X X XExt-JS X X X X X X
Scriptaculous P X XjQuery UI X X X X
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Round 7: Documentation
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JQuery• Several books• Documentation section on their website• AIR app with docs and samples
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Prototype• Book from Manning• Scriptaculous and Prototype have API
documentation• Lacks a “getting started” guide• Limited examples on Prototype’s site
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Spry• Support built into Dreamweaver• Large amount of documentation with
examples on their site• No books• Still in “pre-release” so the API may change
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Ext-JS• Used the CF documentation as a guide• For advanced stuff use the 1.1 docs on
ExtJS’s site
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The Bloody Aftermath
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Questions?
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