类型“{ $: ComponentInternalInstance; $data: {}; $props: { key?: string | number | symbol | undefined; ref?: VNodeRef | undefined; ref_for?: boolean | undefined; ... 8 more ...; style?: unknown; }; ... 10 more ...; $watch<T extends string | ((...args: any) => any)>(source: T, cb: T extends (...args: any) => infer R ? (arg...”上不存在属性“$router”。ts(2339)

这个错误可能是因为 TypeScript 无法识别 `$router` 属性的类型，需要手动为 `$router` 添加类型声明。

在 Vue 3 中，`$router` 属性的类型为 `Router`，你可以在组件中手动为 `$router` 添加类型声明，具体做法如下：

1. 在组件文件中导入 `Router` 类型：

import { defineComponent } from 'vue'
import { Router } from 'vue-router'

export default defineComponent({
  setup() {
    // 声明 router 类型为 Router
    const router: Router = ...

    // 使用 router 实例
    router.push('/path')

    // ...
  }
})

2. 在模板中直接使用 `$router`：

<template>
  <div>
    <button @click="$router.push('/path')">跳转到 path 页面</button>
  </div>
</template>

需要注意的是，为了让 TypeScript 识别 `$router` 的类型，你需要在组件选项中使用 `defineComponent` 函数创建组件，并在 `setup` 函数中手动声明 `$router` 的类型。

相关问题

类型“{ $: ComponentInternalInstance; $data: {}; $props: Partial<{}> & Omit<Readonly<ExtractPropTypes<{}>> & VNodeProps & AllowedComponentProps & ComponentCustomProps, never>; ... 10 more ...; $watch(source: string | Function, cb: Function, options?: WatchOptions<...>): WatchStopHandle; } & ... 4 more ... & { ...; }”上不存在属性“form”。

这段错误信息表示，在一个 TypeScript 类型为 "{ $: ComponentInternalInstance; $data: {}; $props: Partial<{}> & Omit<Readonly<ExtractPropTypes<{}>> & VNodeProps & AllowedComponentProps & ComponentCustomProps, never>; ... 10 more ...; $watch(source: string | Function, cb: Function, options?: WatchOptions<...>): WatchStopHandle; } & ... 4 more ... & { ...; }" 的对象中，试图访问一个名为 "form" 的属性，但是该属性不存在。可能是由于代码中缺少定义或声明了一个不存在的属性导致的。需要进一步检查代码并确定对象是否包含 "form" 属性。

“{ $: ComponentInternalInstance; $data: {}; $props: Partial<{}> & Omit<Readonly<ExtractPropTypes<{}>> & VNodeProps & AllowedComponentProps & ComponentCustomProps, never>; ... 10 more ...; $watch<T extends string | ((...args: any) => any)>(source: T, cb: T extends (...args: any) => infer R ? (args_0: R, args_1: R) => ...”上不存在属性“list”。

; $attrs: {}; $refs: {}; $slots: {}; $root: ComponentInternalInstance; $parent: ComponentInternalInstance | null; $emit: Function; $el: Element; $options: ComponentOptions; $nextTick: Function; }”

This is a type definition for a Vue.js component instance object. It includes several properties that are commonly used within Vue components:

- `$data`: an object representing the component's data properties
- `$props`: a partial object representing the component's props (which may be defined in the component's options)
- `$attrs`: an object representing any non-prop attributes passed to the component
- `$refs`: an object representing any named references to child components or elements within the component's template
- `$slots`: an object representing any named slots within the component's template
- `$root`: the root component instance of the current component hierarchy
- `$parent`: the parent component instance (if any) of the current component
- `$emit`: a function for emitting custom events from the component
- `$el`: the root DOM element of the component
- `$options`: the options object used to define the component (including its data, methods, computed properties, etc.)
- `$nextTick`: a function for scheduling a callback to run after the next DOM update cycle.