Simon Willison’s Weblog

Breadth first traversal of a tree. Mind bending usage of yield. Depth-first traversal is left as an exercise for the reader.

Posted 11th December 2003 at 12:47 am

Recent articles

Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025
Dane Stuckey (OpenAI CISO) on prompt injection risks for ChatGPT Atlas - 22nd October 2025
Living dangerously with Claude - 22nd October 2025

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