<script lang="ts">
import Vue from "vue";
export default Vue.extend({
  name: "HelloWorld",
  props: {
    msg: String
  },
  data():any {
    return {
      wtf: this.initData(), // throw ts error : Property 'initData' does not exist on type 'CombinedVueInstance<Vue, {}, {}, {}, Readonly<{ msg: string; }>>'.
    }
  },
 
  methods: {
    initData():any {
        return {
          a: ''
        }
    },
  },
 
});
</script>