vuejs 路由器中的可选参数

我需要以两种方式路由到某个组件 - 一种有参数，一种没有.我搜索了可选参数，但不知怎么找不到太多信息.

I need to route to a certain component in two ways - one with a param, one without. I have searched for optional params and somehow can't find much info.

所以我的路线:

{
    path: '/offers/:member',
    component: Offers,
    name: 'offers',
    props: true,
    meta: {
        guest: false,
        needsAuth: true
    }
},

当我以编程方式使用参数调用它时，一切都很好

When I call it with the param programmatically, all is fine

this.$router.push({ path: /offers/1234 });

但是我也需要像这样通过导航调用它

However I also need to call it via nav like this

<router-link to="/offers">Offers</router-link>

offers 组件接受 prop

props: ['member'],

和组件一样使用

<Offers :offers="data" :member="member"></Offers>

现在我设法让它工作的丑陋方法是复制路线并使其中一个不带道具:

Now the ugly way I've managed to get it working is duplicating the route and making one of them not take props:

{
    path: '/offers',
    component: Offers,
    name: 'offers',
    props: false,
    meta: {
        guest: false,
        needsAuth: true
    }
},

它确实有效，但我对它不满意 - 在开发模式下 vuejs 也在警告我 [vue-router] 重复命名路由定义:{ name: "offers", path: "/offers"}

It actually works, but i'm not happy with it - also in dev mode vuejs is warning me [vue-router] Duplicate named routes definition: { name: "offers", path: "/offers" }

当然有一种方法可以在组件调用 :member="member" 中做可选参数吗?

Surely there's a way to do optional param in the component call :member="member" ?