vue3 使用@Component

在Vue 3中，`@Component` 是基于 TypeScript 的 Vue 模块化的声明方式，用于创建组件。它是一个装饰器，通常放置在类的前面，告诉 Vue 软件包这个类是一个 Vue 组件。`@Component` 包含了组件的一些核心属性，如模板、数据选项 (`data`)、生命周期钩子 (`methods`、`created`、`mounted` 等) 和一些可选配置，如 `components`（嵌套组件）、`props`（传入组件的 props）、`provide/inject`（提供/注入依赖）等。

import { Component, Prop } from 'vue';

@Component({
  template: '<div>这是一个 Vue 3 组件</div>',
  data() {
    return {
      message: 'Hello from Vue 3!'
    };
  },
  methods: {
    sayHello() {
      console.log(this.message);
    }
  },
  props: {
    name: {
      type: String,
      required: true
    }
  }
})
export default class MyComponent extends Vue {
  // 其他可选配置...
}

相关问题

While resolving: @progress/kendo-vue-animation@0.3.7 npm ERR! Found: vue-class-component@7.2.6 npm ERR! node_modules/vue-class-component npm ERR! vue-class-component@"^7.2.3" from the root project

It looks like you are encountering an error while resolving dependencies in your project. Specifically, there seems to be a conflict between the version of `vue-class-component` required by `@progress/kendo-vue-animation` and the version installed in your project.

The error message states that `@progress/kendo-vue-animation@0.3.7` requires a version of `vue-class-component` that is not compatible with the currently installed version (`7.2.6`). `@progress/kendo-vue-animation` expects a version of `vue-class-component` that is at least `"^7.2.3"`, but it seems you have a higher version installed.

To resolve this issue, you can try updating the `vue-class-component` package in your project to a version that meets the requirements of both `@progress/kendo-vue-animation` and any other packages that depend on it.

You can use the following command to update the `vue-class-component` package:

npm install vue-class-component@^7.2.3

Make sure to run this command in the root directory of your project. After the installation is complete, try running your project again and see if the error persists.

If the issue still persists or if you have any further questions, please let me know.

webpack 运行 vue-property-decorator @Component({报错

如果在使用 `vue-property-decorator` 的 `@Component` 装饰器时出现了报错，可能是以下几个原因导致的：

1. 未正确安装 `vue-property-decorator` 模块。请确保已经通过 `npm` 安装了该模块，可以尝试重新安装或更新版本。

2. 未正确引入 `vue-class-component` 模块。 `vue-property-decorator` 是基于 `vue-class-component` 的，因此需要在代码中先引入 `vue-class-component`，可以使用以下代码：

import { Component, Vue } from 'vue-class-component';

3. TypeScript 版本不兼容。在使用 `vue-property-decorator` 时，需要使用 TypeScript 2.8 或更高版本，可以尝试升级 TypeScript 版本。

4. 缺少必要的依赖。请确保已经安装了 `vue-template-compiler` 和 `@types/vue` 模块，可以使用以下命令安装：

npm install vue-template-compiler @types/vue --save-dev

如果以上方法都不起作用，建议检查一下报错信息，可能会给出更具体的提示。