Apply directly to the forehead.

A V8 deoptimization toolkit for AI agents and dev workflows: MCP server, findings engine, benchmark harness, and fix-verify comparison for inline caches, deopts, and hidden-class churn

Mutable JavaScript object with an immutable hidden class.

Find subsequent changes in the shape (hidden-class) of your Objects which result in unoptimized code

setDropdown is a utility function to easily manage dropdown visibility with customizable event listeners (click or hover) and support for custom hidden class names.

Escape RegExp special characters

Node.js path.parse() ponyfill

Check if something is a Node.js stream

Convert a string of words to a JavaScript identifier

Get the first fulfilled promise that satisfies the provided testing function

Gracefully restore the CLI cursor on exit

Parse HTTP X-Forwarded-For header

Get the command from a shebang

Get the first path that exists on disk of multiple paths

Get the PATH environment variable key cross-platform

Traverse JSON Schema passing each schema object to callback

Check if argv has a specific flag

Resolve the path of a module like `require.resolve()` but from a given path

Safer Node.js Buffer API

An implementation of the Unicode UTS #46: Unicode IDNA Compatibility Processing