feat: add mounted

lib/one.js

@@ -118,12 +118,18 @@ function watch(obj, key, fn) {
 }
 
 /**
-  * @param {{ el: HTMLElement, state: object, view: function }} context
+  * @param {object} context
+  * @param {HTMLElement} context.el The element to mount to
+  * @param {object} context.state The state object
+  * @param {function} context.view The view function
+  * @param {function} [context.mounted] The mounted function
   * @todo Add a way to hook into unmouting
-  * @todo Add a way to run operations after the view is mounted
-  * @todo Add a way to run operations before the view is unmounted
+  * @todo Add a way to run operations after the view is init
+  * @todo Add a way to run operations before the view is uninit
   */
-function mount({ el, state, view }) {
+function mount(context) {
+  const { el, state, view, mounted } = context
+
   const proxy = state ? new Proxy({ ...state }, {
     set(obj, prop, value) {
       if (obj[prop] == null) {
@@ -150,11 +156,13 @@ function mount({ el, state, view }) {
 
   el.$one = { shadow: v }
 
-  if (el.children[0]) {
+  if (el.children?.[0]) {
     el.children[0].replaceWith(v)
   } else {
     el.append(v)
   }
+
+  mounted?.({ el, state: proxy })
 }
 
 /**