Simon Willison’s Weblog

JavaScript Closures for Dummies. Not quite for Dummies as it talks about C pointers, but a valiant attempt.

Posted 6th July 2006 at 10:01 am

Recent articles

Wilson Lin on FastRender: a browser built by thousands of parallel agents - 23rd January 2026
First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026

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