Overview

Van Element exposes a single function: define(...). It can take up to 3 arguments:

• name
  Custom element tag.
• element
  VanJS functional component.
• options (optional)
  Extra Shadow DOM options.

The provided VanJS functional component will be called with an object containing the following properties:

• attr()
  Method to retrieve the value of a given attribute.
• mount()
  Lifecycle hook to register mount and dismount callbacks.
• $this
  Refers to the instance of the created custom element. Useful for accessing properties or binding event listeners.