# 3rd Party Integration

Integration with third party libraries or vanilla javascript code can be achieved via [lifecycle methods](lifecycle-methods.md).

## Example

```javascript
var FullCalendar = {

	oncreate: function (vnode) {
		console.log('FullCalendar::oncreate')
		$(vnode.dom).fullCalendar({
			// put your initial options and callbacks here
		})

		Object.assign(vnode.attrs.parentState, {fullCalendarEl: vnode.dom})
	},

	// Consider that the lib will modify this parent element in the DOM (e.g. add dependent class attribute and values).
	// As long as you return the same view results here, mithril will not
	// overwrite the actual DOM because it's always comparing old and new VDOM
	// before applying DOM updates.
	view: function (vnode) {
		return m('div')
	},

	onbeforeremove: function (vnode) {
		// Run any destroy / cleanup methods here.
		//E.g. $(vnode.state.fullCalendarEl).fullCalendar('destroy')
	}
}

m.mount(document.body, {
	view: function (vnode) {
		return [
			m('h1', 'Calendar'),
			m(FullCalendar, {parentState: vnode.state}),
			m('button', {onclick: prev}, 'Mithril Button -'),
			m('button', {onclick: next}, 'Mithril Button +')

		]

		function next() {
			$(vnode.state.fullCalendarEl).fullCalendar('next')
		}

		function prev() {
			$(vnode.state.fullCalendarEl).fullCalendar('prev')
		}

	}

})

```

Running example [flems: FullCalendar](https://flems.io/#0=N4IgZglgNgpgziAXAbVAOwIYFsZJAOgAsAXLKEAGhAGMB7NYmBvAHigjQGsACAJxigBeADog4xAJ6w4hGDGKjuhfmBEgSxAA5xEAel3UAJmgBWcfNSi0ArobBQM-C7Sy6MJjAA9d7AEZxdMGsoKGoMWDRDR10AZnwAdnwABkDg0PCmKN58LA4LODhRAD4QAF8KdGxcRAIzShp6RmYagDdHbgAxNIBhDMj2wW5gYTQR4WJ6an4MRkRuILRqYgh6bgAKFrRaQxgASiGxhWI6NDhaWHwrAHM1gHIukN6oft5EREnpxlvdw-GAEg2Wx2+EMLl2+CCjz6WTWw1GR3G+m4mmsxG4EhsvG4HAgy3C3FommW9Dg3AwkW4YRCvgw1E4pNk-F+xFKP1G8PGAHlfCYYEt8BgChArmhAdsYALiMReOZNI4mMQAMrEGYwChDSFQJ6ZRwAUSgc024pBLlZh3KY3hLQgMAA7nMFksVmh1kadvs4eNxvxiNZeC6sHdDBAWt9zRRLeN6L4YGBaPx+FhaC0YA7rItiS6xe6DhziEiAErpsloCTcHbiXi0Mu6SmwcnWTTcHDEQjbBkwJzM-QAt0S8SqiE9aF6qDgzXal5B+DS6th+GlEaL9lYHI2BhrUHUaw4Bj4XzbCTqz3Ea12tMZ52uoF7XNe6XyP0u5DM8aB26EACMt3Vt0nWW+CM8zfNYHi1EdeGPOV+AYZVVUNG98AHRhWSA+8QNuXxUQmNAfzvBEjkmdg6TmTR+BaV8WV-ABZXFlGgbgACFsNWABaQDKPfLCpXoPCT3QnDLAgEjuDQGBPAUYCqO4W5aNbXgGOYniXQAannZkAF1IyOR1M1E8TiDWD1KN7RDkIlCcIP1cdhwiGFbjEiT1KOZdmV0q8yJgFojPw+9TONcyhyhOzRxs4KdV4O5PNDNl71chdLVZMoKhATAcDwfIECoE4mmIPAyg0qh2C4BAUEqdKalyeToHqP1yBqDRtD0XR000TgrmcVwqvoqAAAFP3wAaAFZdG6hSoHwOoqEkTRqhAOpynKuak13PKqDqvBGp0fRWvazrRpcBVeoAJkGgBOfBjoO1bJqykAZrmhaUrSx6AEdrE7CRat4er1ClJqdrQNqOroVwTHez7eriU7P10YNxF0cGPt4CRbvqB68Cepa8E1KkIu+36tua3aQZcVIQjxl4oYSZI4YgBHcYgtHpokWbMYQUoNNKIA)