onmount/docs/README.md

Run something when a DOM element appears and when it exits

# Table of contents

- [onmount](/README.md)
- [Premise](premise.md)
- [API](api.md)
- Features
  - [Idempotency](idempotency.md)
  - [Performing cleanups](cleanup.md)
  - [Unique IDs](unique-ids.md)
  - [Cancelling](cancelling.md)
  - [Automatic observation](automatic-observation.md)
  - [Role attributes](role.md)
- Testing
  - [Testing](testing.md)
- Integrations
  - [With React](react.md)
  - [With Turbolinks](turbolinks.md)
  - [With Rails](rails.md)