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Add $root refer to component root element #180

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@ws-rush ws-rush commented Aug 29, 2022

Some times like in dialogs we need access to root component from child nodes, also it is a way to access root element from v-scope . the next snippet from another PR to expose $el to scope, but this PR can solve the same problem also

<textarea
  v-scope="{width: $root.offsetWidth, height: $root.offsetHeight}"
  @click="width = $el.offsetWidth; height = $el.offsetHeight;"
>
{{ width }} &times; {{ height }}
</textarea>

ws-rush and others added 2 commits July 16, 2022 14:18
Some times like in dialogs we need access to root component from child nodes, also it is a way to access root element from `v-scope` . the next snippet from another PR to expose `$el` to scope, but this PR can solve the same problem also

```html
<textarea
  v-scope="{width: $root.offsetWidth, height: $root.offsetHeight}"
  @click="width = $el.offsetWidth; height = $el.offsetHeight;"
>
{{ width }} &times; {{ height }}
</textarea>
```
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