babel-helpers

A collection of helper functions used by Babel transforms, such as `typeof`, `extends`, `inherits`, and others. Current stable version is v7.x (e.g., v7.29.2), with v8.0.0-rc.3 as the next major pre-release. The package is part of the Babel monorepo and is released on the same cadence as Babel core (typically monthly or as needed). Key differentiator: it provides the internal helper functions that Babel plugins use to generate runtime code, and it is not intended for direct use by most developers; instead, the helpers are bundled into output via `@babel/plugin-transform-runtime` or `@babel/preset-env`.