Redis Array Hands-On Environment

Salvatore Sanfilippo submitted a PR adding a new data type array to Redis.

The commands proposed alongside it are as follows.

• ARCOUNT, ARDEL, ARDELRANGE, ARGET, ARGETRANGE, ARGREP
• ARINFO, ARINSERT, ARLASTITEMS, ARLEN, ARMGET, ARMSET
• ARNEXT, AROP, ARRING, ARSCAN, ARSEEK, ARSET

Since the implementation is still at the branch stage, Simon Willison built a hands-on environment that can be run directly in the browser using Claude Code for web. This environment runs part of Redis compiled to WASM inside the browser, letting people try out the new commands.

The most notable command is ARGREP. It performs a server-side grep over a range of array values, using the newly included TRE regex library.

Salvatore Sanfilippo explained the development process of the array type and his experience with AI-assisted development in more detail in a separate post.