vue - props declare array and object operations

I won't say much nonsense, let's just read the code~

props: {
  array: {
    type: Array,
    default () {
      return []
    }
  },
  object: {
    type: Object,
    default () {
      return {}
    }
  }
}

Supplementary knowledge:In Vue project, how to set the height of a certain part to ensure

Look at the code ~

.icons
  overflow: hidden
  height: 0
  padding-bottom: 50%
  background: green

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