如何调用Angular组件中assets文件夹下的单独文件中的外部Javascript函数？

Posted 2021-04-17

//Way 1 - Not working
import { LoadCarouselAndPopup } from '../../../assets/js/main.js';
LoadCarouselAndPopup();

//Way 2 - Not working
declare var System: any;
System.import('../../../assets/js/main.js')
    .then(xJS => {
        xJS.LoadCarouselAndPopup();
    });

}

我尝试过以上两种方式。

第一种方式，我无法编译代码，因为它抛出错误，如“错误TS5055：无法写入文件'main.js'，因为它会覆盖输入文件”。在这种情况下，我也添加了“allowJs：true”。

在方式2中，我收到错误，如“无法读取未定义的属性'调用'”

帮我解决这个问题。提前致谢。

答案

正如我在图像中看到你的文件夹结构我相信你正在使用angular-cli，所以你可以通过在脚本数组中的.angular-cli.json文件中包含脚本的路径来包含你的外部脚本

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "project": {
    "name": "dummy-project"
  },
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": [
        "assets",
        "favicon.ico"
      ],
      "index": "index.html",
      "main": "main.ts",
      "polyfills": "polyfills.ts",
      "test": "test.ts",
      "tsconfig": "tsconfig.app.json",
      "testTsconfig": "tsconfig.spec.json",
      "prefix": "app",
      "styles": [
        "styles.css"
      ],
      "scripts": ['assets/filename.js],
      "environmentSource": "environments/environment.ts",
      "environments": {
        "dev": "environments/environment.ts",
        "prod": "environments/environment.prod.ts"
      }
    }
  ],
  "e2e": {
    "protractor": {
      "config": "./protractor.conf.js"
    }
  },
  "lint": [
    {
      "project": "src/tsconfig.app.json",
      "exclude": "**/node_modules/**"
    },
    {
      "project": "src/tsconfig.spec.json",
      "exclude": "**/node_modules/**"
    },
    {
      "project": "e2e/tsconfig.e2e.json",
      "exclude": "**/node_modules/**"
    }
  ],
  "test": {
    "karma": {
      "config": "./karma.conf.js"
    }
  },
  "defaults": {
    "styleExt": "css",
    "component": {}
  }
}

另一答案

据我所知，你正在使用角度cli。您已在cliconfig中加载脚本。以下是wiki如何实现：https://github.com/angular/angular-cli/wiki/stories-global-scripts