AngularJS与Angular6混合应用报错：exports未定义及tsconfig问题求助

Hey there, let's tackle these two issues you're facing with your hybrid app setup one by one:

1. Resolving "exports is not defined" Error in app.module.js #

The exports is not defined error occurs because your TypeScript is compiling to CommonJS-style modules (even without explicitly setting module: "commonjs" in tsconfig), but browsers don't natively recognize CommonJS exports syntax. Here's how to fix it:

• Add the module compiler option explicitly: Include "module": "es2015" in your compilerOptions to tell TypeScript to output ES modules, which are compatible with Angular's build pipeline and modern browsers:

  {
    "compilerOptions": {
      "target": "es5",
      "module": "es2015", // Add this line
      "moduleResolution": "node",
      "sourceMap": true,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "lib": [ "es2015", "dom" ],
      "noImplicitAny": true,
      "suppressImplicitAnyIndexErrors": true
    }
  }
  

• Ensure your build tool handles bundling: If you're using Angular CLI (standard for Angular 6), it will automatically bundle ES modules into browser-compatible code. For custom setups, confirm tools like Webpack or SystemJS are configured to process ES modules correctly.
• Avoid direct browser loading without a bundler: If testing by loading app.module.js via a <script> tag, add type="module" to the tag. Note that AngularJS may need extra setup to work with ES modules, so using a bundler is the more reliable approach for hybrid apps.

2. Fixing Red Underline on the lib Array in tsconfig.json #

The red underline is almost always a TypeScript version mismatch or editor configuration issue:

• Verify your project's TypeScript version: Angular 6 requires TypeScript ~2.7.2. Check your package.json to confirm the installed version matches this range. If not, update it with:

  npm install typescript@~2.7.2 --save-dev
  

• Use the project's local TypeScript version in your editor: If using VS Code, the editor might be using a global TypeScript version that's incompatible. Fix this by:
  1. Opening your project in VS Code.
  2. Clicking the TypeScript version number in the bottom-right corner.
  3. Selecting "Use Workspace Version" from the dropdown.
• Double-check JSON syntax: Ensure there are no missing commas, mismatched brackets, or non-English quotation marks in your tsconfig.json. Your current config looks valid, but hidden syntax errors can trigger false positives.

After applying these changes, restart your compiler and editor to confirm the issues are resolved.

内容的提问来源于stack exchange，提问作者knowledge20