Function watchEffectRef

tech-study.js:1293–1299

(callback)

 * @returns
 */
const watchEffectRef = (callback) => {
    // 收集依赖
    const effectRes = shallowRef(undefined);
    // 监听
    watchEffect(() => (effectRes.value = unref(callback())));
    return effectRes;
};
/**
 * @description 创建元素节点
 * @param eleName