Simon Willison’s Weblog

Global namespace pollution in IE. Another reason to avoid JavaScript global variables like the plague: IE creates a bunch of them for you which may well intefere with your own code.

Posted 10th October 2007 at 10:10 am

Recent articles

My review of Claude's new Code Interpreter, released under a very confusing name - 9th September 2025
Recreating the Apollo AI adoption rate chart with GPT-5, Python and Pyodide - 9th September 2025
GPT-5 Thinking in ChatGPT (aka Research Goblin) is shockingly good at search - 6th September 2025

globals 2 ie 63 internet-explorer 25 javascript 721

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