创建容器模块时使用export * as语法遇TS编译错误求助

Hey, let's break down why you're hitting this error and how to fix it. That export * as x from 'y' syntax is an ES2020 feature for aggregating exports, and TypeScript does support it—but only under the right conditions. Here's what to check:

1. Verify Your TypeScript Version #

First off, this syntax was added in TypeScript 3.8. If you're running an older version, tsc won't recognize it at all. Check your current version with:

tsc -v

If it's below 3.8, upgrade to a newer version (latest is always a safe bet):

npm install typescript@latest --save-dev

2. Tweak Your tsconfig.json Settings #

Even with the right TS version, your compiler config might be holding you back. Make sure your tsconfig.json includes these key settings to enable ES module support:

{
  "compilerOptions": {
    "module": "ESNext", // Or ES2020/ES2022—any that supports ES2020 syntax
    "target": "ES2020", // Your output JS version needs to be at least ES2020
    "moduleResolution": "NodeNext" // Or Node16, to handle modern module resolution correctly
  }
}

3. Correct Import Syntax (If You're Converting to Imports) #

If you're trying to translate that export into an equivalent import, the proper TypeScript syntax is:

import * as x from 'y';

And if you want to import and re-export (matching your original export's behavior), you can either do it in two lines:

import * as x from 'y';
export { x };

Or just use the same export syntax you started with—since TS 3.8+, it's fully supported!

Quick Error Troubleshooting #

• If you see a syntax error like Unexpected token 'export', double-check your TS version and module config first.
• Module resolution errors? Ensure moduleResolution is set to NodeNext or Node16, and that your path to 'y' is correct.

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