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What's New for AJAX Developers in IE8 Beta1?
 

What's New for AJAX Developers in IE8 Beta1?

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This session introduces the new AJAX features in IE8.

This session introduces the new AJAX features in IE8.

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    What's New for AJAX Developers in IE8 Beta1? What's New for AJAX Developers in IE8 Beta1? Presentation Transcript

    • IE8 Beta 1 For Developers What’s New for Ajax Developers? Janakiram MSV Program Manager, JScript Team Microsoft India Development Center
    • Agenda
      • Compatibility
      • WebSlices
      • Activities
      • DOM Storage
      • HTML 5 Events
      • Developer Toolbar
    •  
    • Does It Look Familiar?
    • Compatibility
      • IE7 Emulation Mode
      • Conditional commenting
      • Opt-in model for IE7 (strict) mode
      • Developer Tools for switching modes
    • WebSlices
      • WebSlices enable publishers to mark up “subscribe-able” parts of web pages, allowing you to monitor your favorite dynamic pieces of the web
    •  
      • Activities connect users to their existing services, from anywhere they may go on the web
        • Easy for web publishers to implement (no client code)
      Activities
    •  
      • Set Window.location.hash, IE does the rest
        • IE fires an window.onhashchange event
        • IE updates the address bar and back button
        • Allows copy & paste of “Ajax URLs”
      IE8 AJAX Navigation
    •  
    • DOM Storage
      • Web applications need local storage
        • Cookies, UserData control
      • HTML5 adds the Storage interface
        • sessionStore (tab/session specific)
        • localStore (shared)
        • Key/value string pairs
        • 10MB per domain
      • IE8 extension: check remaining store, clear
    • HTML 5 Events
      • Network connectivity is transient
        • HTML5 adds online/offline events
        • And a state indicator
      <!-- Add handlers for online/offline events --> <body ononline=“go_online()” onoffline=“go_offline()”>; // Find out if browser is online online = window.navigator.onLine;
    •  
    • Optimizing for Performance
      • Jscript improvements
        • DOM object look ups are much faster
        • Circular references are garbage collected
        • Faster native JavaScript operations
          • function call performance (lazy ‘this’ evaluation, lazy GC init)
          • string methods (string concat, replace, slice, splice)
          • array methods (concat, sort)
          • read, write, and delete Object methods
          • garbage collection algorithm
          • communication layer between DOM and JScript
      • CSS, HTML and Javascript debugger “in the box!”
      • Debug JavaScript
        • Execution control (breakpoints, step into, etc.)
        • Variable inspection (watches, locals, etc.)
        • Immediate window
      • Debug CSS and HTML
        • View effective styles
        • Trace styles
        • View applied rules
        • View layout (box model) info
        • Edit HTML and CSS and see the effect immediately
      IE8 Developer Tools
    •  
    • Resources
      • http://www.microsoft.com/ie/ie8
      • http://blogs.msdn.com/ie
      • http://blogs.msdn.com/jscript
      • http://msdn.microsoft.com/ie
      [email_address] http://www.janakiramm.net/blog
    •