${countries[treeSelected].name}
${countries[v].name}
```html ``` * UITreeOptions - `showCheckbox`: Checkable items - `checkboxLevel`: Checkable tree level. -1 to have all levels checkable. - `showRoot`: Display root node - `rootLabel`: Root node label - `selectionLevel`: Selectable tree level. -1 to have all levels selectable. * UITreeModel - `id` - `text` - `icon` - `leaf` - `checked` - `disabled` - `expanded` - `children`: `Array `