IE9 - "the good, the bad, the ugly"
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Beta Danwei Tran Developer Evangelist @danweitran
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Presentation by Danwei Tran (Microsoft) for the Disruptive Code conference, Stockholm 2010.
Transcript of IE9 - "the good, the bad, the ugly"
Beta
Danwei Tran
Developer Evangelist
@danweitran
Double rainbow guy
”The Good, the Bad, the Ugly”
7
www.IEtestdrive.com
Demo: Pinned Sites
The Good
Browser Subsystems
Collections
JavaScript
Marshalling
HTML
CSS
DOM
Layout
Formatting
Block Building
Rendering
Networking
HTML parsing
CSS parser
Collections
JavaScript
Marshalling
Native OM
Formatting
BlockBuild
Layout
Rendering
Average Distribution Across News Sites
HTML parsing
CSS parser
Collections
JavaScript
Marshalling
Native OM
Formatting
BlockBuild
Layout
Rendering
Average Distribution Across Top AJAX Sites
Source Code
Parser AST Interpreter ByteCode
Foreground
New JavaScript Engine – “Chakra”
Background Background
Compiler
Native
Code
PAGE 15
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Version 0.9.1, Results Generated September 4th, 2010
WebKit SunSpider JavaScript Benchmark Results
Using The Full Power of Your PC
Everyone has a GPU
Demo: Flying images
The Bad
We HTML5 and other modern standards
Member of many
W3C Working Groups
7000 top sites
API (by rank) 1 50 700
Nu
mb
er
of
site
s
7000
0
API Rank Percent of Sites
indexOf 1 94%
getElementById 13 80%
addEventListener 27 65%
getComputedStyle 62 26%
Web API usage
“The real point here is that the Acid3 test
isn't a broad-spectrum standards-support
test. […] Which is a shame, because
what's really needed right now is
exhaustive test suites for specifications”
- Eric Meyer
http://meyerweb.com/eric/thoughts/2008/03/27/acid-redux/
Leading the W3C HTML5
Testing Task Force
Demo: Defining same mark-up
The Ugly
The Ugly ?
Demo: Developer Tools
www.BeautyOfTheWeb.com
