IE Developer ToolsJonathan SeitelProgram Manager

Dev Tools: FoundationsIE8: it's not old, it's classic

Key Benefits of IE Dev Tools

• A visual interface to the platform• Remove black box around Trident• Debug where your bugs happen: in the browser• Included with IE

• Fast experimentation• Reduce “edit, save, deploy, refresh” cycle

• Spend more time adding features• (And less time fixing bugs.)

Debugging: HTML and CSS

• View applied rules• Trace styles• View layout• Edit HTML and CSS• Save changes

Debugging: JavaScript

• Execution control• Per-statement debugging

• Variable Inspection• Console, including console.log

support

Debugging: Compatibility

• Easily change browser mode • Changes user agent string, version vector,

default document mode• Easily change document mode• Affects how IE interprets a page

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Demo: T-Shirt Designer

• Quick compat checking• Thorough CSS tracing• Fast, easy JS debugging

Debugging: Performance

• JavaScript Profiler• One click start/stop of profiler• Quickly see where application is spending time, including

within built-in functions• Function or Call Tree View• Export data to file• Currently hooking up to our new, even faster scripting

engine

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Demo: Profiler

• Easy to compare side-by-side• See which code paths are being hit• Can help you spot patterns for optimization• Easy export for deeper analysis

Dev Tools: HTML5 and BeyondThe future is here

Debugging Improvements

• New elements and APIs, same power• XML, XHTML, SVG

• CSS directly from layout engine• JavaScript

• Word wrap• Go to line

Performance

• View Source• HTML5 spec: Loads in <5s

• JS Debugging• Quite good for large JS files (>10 kloc)

• Navigation• Keep the dev tools open while you browse

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Demo: HTML5 T-Shirt Designer

• New Elements and APIs• Same dev tool constructs• Easy iteration of your new code

Network Monitor

• Easily inspect headers, performance, and networking issues

Network Monitor

• Capture all HTTP traffic• Inspect IE, AJAX, Flash, and Silverlight• Request timing graph• XML export (see: Fiddler talk)

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Demo: Network Monitor

• Start capturing to listen to HTTP traffic• Applies to traffic from your entire app• Great high-level way of debugging network issues

Tips and TricksThings you'll love

Inspecting Headers

SVG Debugging

• Play with your SVG images in real-time

Search with Selectors API

• Prefix your search string with '@' to use the W3C's Selectors API

Customize View Source App

• Easily choose the built-in viewer, Notepad, or any other application without modifying the registry

JS Debugging Within a Line

• Set breakpoints and step through each JavaScript statement, even when contained on the same line

Syntax Coloring and Fonts

• Improved readability with syntax coloring and an excellent font: Consolas

Keyboard Accessibility

• Extensive keyboard support• Complete reference:

http://msdn.microsoft.com/en-us/library/cc848896(VS.85).aspx

• Interoperable shortcuts with other tools where possible• Execution control shortcuts same as Visual Studio• Open/Close and navigating edit boxes same as Firebug

Color Picker

• Simple yet just what you need

Resize Window

• Quick, exact window size testing

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Next Steps

• Press F12• Check out ietestdrive.com• Tell us what you think!

Keep up on the latesthttp://blogs.msdn.com/ie

Meet the team in the Internet Explorer Lounge located in The

Commons!

Download the Internet Explorer 9 Platform previewwww.IETestDrive.com

© 2009 Microsoft Corporation. All rights reserved.This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.

© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.

The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions,

it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.