what @ does to props vuejs code example

Example 1: vue js default prop

props: {
  name: {
    type: String,
    default: 'John Doe'
  }
}

Example 2: vuejs components props pass array

<!-- Even though the array is static, we need v-bind to tell Vue that -->
<!-- this is a JavaScript expression rather than a string.            -->
<blog-post v-bind:comment-ids="[234, 266, 273]"></blog-post>

<!-- Dynamically assign to the value of a variable. -->
<blog-post v-bind:comment-ids="post.commentIds"></blog-post>

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Swift Example

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