Vue: 全局函数和变量

main.ts

import { createApp } from 'vue'
import App from './App.vue'


const app = createApp(App)

type Filter = {
  format: (str: T) => string
}

declare module '@vue/runtime-core' {
  export interface ComponentCustomProperties {
    $filters: Filter,
    $env: string
  }
}
app.config.globalProperties.$filters = {
  format(str: T): string {
    return `globalProperties ${str}`
  }
}
app.config.globalProperties.$env = 'dev'

app.mount('#app')

App.vue