Vue.js: How do you implement a plugin?

1// plugins/analytics.ts
2export const analytics = {
3  install(app) {
4    app.config.globalProperties.$analytics = {
5      track(event) {
6        console.log("Tracking:", event)
7      }
8    }
9    app.provide("analytics", {
10      track(event) { console.log("Tracking:", event) }
11    })
12  }
13}

1import { analytics } from "./plugins/analytics"
2app.use(analytics)

1<script setup>
2import { inject } from "vue"
3const analytics = inject("analytics")
4analytics.track("page_view")
5</script>