vue displaying a this.length

<template>
  <div>
    <p>Length: {{ arrayLength }}</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      myArray: [1, 2, 3, 4, 5]
    };
  },
  computed: {
    arrayLength() {
      return this.myArray.length;
    }
  }
};
</script>

1. A Vue single-file component is defined, containing a template and a script section.
2. The template section contains a <div> element wrapping a <p> element.
3. Inside the <p> element, there's a text "Length: " followed by a placeholder {{ arrayLength }}.
4. The script section starts with exporting a default Vue component.
5. Inside data() method, there is a property myArray initialized with an array [1, 2, 3, 4, 5].
6. The computed property defines a computed property named arrayLength.
7. The arrayLength computed property returns the length of the myArray property using this.myArray.length.
8. The value returned by arrayLength will dynamically update whenever myArray changes, displaying the length of the array in the template where {{ arrayLength }} is referenced.