props 类型

// 3.5+
interface Props {
  msg?: string;
  labels?: string[];
}

const { msg = "hello", labels = ["one", "two"] } = defineProps<Props>();

组件类型

import { computed, reactive, ref, useTemplateRef } from "vue";
import keyboard from "@/stores/keyboard";

const colorKeyboards =
  useTemplateRef<InstanceType<typeof Keyboard | null>>("Keyboard");

TS 与组合式 API