Simon Willison’s Weblog

Object.prototype is verboten. This is a problem with the popular Prototype library.

Posted 5th July 2005 at 11:53 am

Recent articles

How StrongDM's AI team build serious software without even looking at the code - 7th February 2026
Running Pydantic's Monty Rust sandboxed Python subset in WebAssembly - 6th February 2026
Distributing Go binaries like sqlite-scanner through PyPI using go-to-wheel - 4th February 2026

javascript 740 prototype-js 19

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe