Simon Willison’s Weblog

Closures and executing JavaScript on page load. I’ve tried to explain closures on my SitePoint blog, using addLoadEvent() as an example.

Posted 26th May 2004 at 7:09 am

Recent articles

My Lethal Trifecta talk at the Bay Area AI Security Meetup - 9th August 2025
The surprise deprecation of GPT-4o for ChatGPT consumers - 8th August 2025
GPT-5: Key characteristics, pricing and model card - 7th August 2025

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