Unquote numeric properties for Vue (if it's indeed safe to do that)

[thorn0]

Unquoted numeric property names seem to be supported in Vue expressions.
But first, before fixing this, it'd be good to find some solid confirmation that it's 100% safe to do that.

Prettier 2.2.1
Playground link

--parser vue

Input:

<template>
  <div id="app">
    <HelloWorld :msg="{ '0': 'Hello Vue!' }[0]"/>
  </div>
</template>

Output:

<template>
  <div id="app">
    <HelloWorld :msg="{ '0': 'Hello Vue!' }[0]" />
  </div>
</template>

Expected (?):

<template>
  <div id="app">
    <HelloWorld :msg="{ 0: 'Hello Vue!' }[0]"/>
  </div>
</template>

[fisker]

I wonder if this breaks the HelloWorld component, if it's msg prop is defined in Typescript,

<template>
  <div id="app">
    <HelloWorld :object="{ '0': 'Hello Vue!' }"/>
  </div>
</template>


<!--- HelloWorld Component -->
<template>
  <div>
    {{object[0]}}
    {{object["0"]}}
  </div>
</template>

<script lang="typescript">
export default {
  prop: {
    object: // Type info here?
  }
}
</script>