Vue Composition API получить this.$route.params.id

Для того чтобы получить this.$route.params.id в разделе setup нужно подключить vue-router

#rootDir/src/components/Examples/Film.vue

<template>
  <div>
    <button @click="funt">go</button>
  </div>
</template>

<script>
import {useRoute} from 'vue-router'

export default {  
  setup() {
    const route = useRoute()

    const funt = () => {
      console.log(route.params.id)
    }

    return {
      funt,
    }
  }
}
</script>

Путь прописан так

#rootDir/src/router/index.js

import { createRouter, createWebHistory } from 'vue-router'
import Film from "@/components/Examples/Film";
const routes = [
  {
    path: '/film/:id',
    name: 'film',
    component: Film
  },
]

const router = createRouter({
  history: createWebHistory(process.env.BASE_URL),
  routes
})

export default router