如何正确地将自定义数据属性属性传递给子组件？

<template>
  <div>
    <child-component :customData="customData"></child-component>
  </div>
</template>

<script>
import ChildComponent from './ChildComponent.vue';

export default {
  components: {
    ChildComponent
  },
  data() {
    return {
      customData: 'Hello World'
    };
  }
};
</script>

<template>
  <div>
    <p>{{ customData }}</p>
  </div>
</template>

<script>
export default {
  props: {
    customData: {
      type: String,
      required: true
    }
  }
};
</script>