Simon Willison’s Weblog

Low Pro Behaviours 101. A neatly packaged method of enhancing an existing DOM element with pre-packaged behaviours.

Posted 17th July 2007 at 10:09 am

Recent articles

The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
Open weight LLMs exhibit inconsistent performance across providers - 15th August 2025
LLM 0.27, the annotated release notes: GPT-5 and improved tool calling - 11th August 2025

behaviours 1 dan-webb 6 dom 13 javascript 718 lowpro 2 prototype 16

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