ts
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// main.ts
import { createApp } from 'vue'
import App from './App.vue'
const app = createApp(App)
// 解决 ts 报错
type Filter = {
format<T>(str: T): string
}
declare module 'vue' {
export interface ComponentCustomProperties {
$filters: Filter,
$myArgs: string
}
}
app.config.globalProperties.$myArgs = 'args'
app.config.globalProperties.$filters = {
format<T>(str: T) {
return `xiuxiu-${str}`
}
}
app.mount('#app')
html
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<!-- App.vue -->
<template>
<div>
{{ $myArgs }}
<hr>
{{ $filters.format('的杯子') }}
</div>
</template>
<script setup lang="ts">
import { getCurrentInstance } from 'vue';
const app = getCurrentInstance()
// 利用组件实例输出{{ $filter.format('的杯子') }}
console.log(app?.proxy?.$filters.format('的杯子'));
</script>
<style scoped></style>
