isRef()

检查某个值是否为 ref。

function isRef<T>(r: Ref<T> | unknown): r is Ref<T>

示例

import { reactive, isRef, ref } from "vue";
const count = ref(1);
const testObj = reactive({
  a: 1,
});
console.log(isRef(count)); //true
console.log(isRef(testObj)); //false