Simon Willison’s Weblog

Rules For JavaScript Library Authors. The guiding principles behind Dean Edwards’ base2 library, entirely applicable to every JavaScript developer.

Posted 23rd March 2007 at 5:53 pm

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

base2 2 dean-edwards 4 javascript 721 libraries 22

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