# API Reference

### [Reactivity: Core](../api/reactivity-core.md)

- [source()](../api/reactivity-core.md#source)
- [derive()](../api/reactivity-core.md#derive)
- [map()](../api/reactivity-core.md#map)
- [watch()](../api/reactivity-core.md#watch)

### [Reactivity: Utility](../api/reactivity-utility.md)

- [cleanup()](../api/reactivity-utility.md#cleanup)

### [Element Creation](../api/creation.md)

- [create()](../api/creation.md#create)

### [Animation](../api/animation.md)

- [spring()](../api/animation.md#spring)

### [Strict Mode](../api/strict.md)