# The Essentials

- [Components](https://cbwire.ortusbooks.com/3.x/essentials/components.md): Sections or areas of your app that are reactive to user input.
- [Templates](https://cbwire.ortusbooks.com/3.x/essentials/templates.md): The HTML that makes up your components.
- [Data Properties](https://cbwire.ortusbooks.com/3.x/essentials/properties.md): The state of the our components.
- [Computed Properties](https://cbwire.ortusbooks.com/3.x/essentials/computed-properties.md): Dynamic, cached, properties that can return any CFML data type.
- [Actions](https://cbwire.ortusbooks.com/3.x/essentials/actions.md): Methods that are invoked based on user interactions.
- [Events](https://cbwire.ortusbooks.com/3.x/essentials/events.md): A simple way for UI components to communicate with each other.
- [Lifecycle Methods](https://cbwire.ortusbooks.com/3.x/essentials/lifecycle-events.md): Various component lifecycle events you can leverage for your needs.
- [JavaScript](https://cbwire.ortusbooks.com/3.x/essentials/javascript.md): Call Actions, emit and listen for Events, and more - all from Vanilla JavaScript.
- [Testing](https://cbwire.ortusbooks.com/3.x/essentials/testing.md): Test your components using TestBox.


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