# Pastebin CWoXdvIl
```
const rc = new RefCollection();
const vdomButton = #{
 type: "button",
 children: #[
 "click me!"
 ],
 props: #{
 onClick: rc.ref(
 () => alert("clicked!")
 ),
 },
 ref: rc.ref(
 document.getElementById("my-button")
 ),
};
rc.deref(vdomButton.props.onClick)();
```