请问，为何不能这样运行ts文件呢？

Question

请问，为何不能这样运行ts文件呢？

文件util.ts：

import ip from 'ip'

export const getLocalIPs = () => {
  //var ip = require("ip");
  console.dir ( ip.address() );

  return ip.address()
}

文件：__test__/util.test.ts

export default {} 

import { getLocalIPs } from '../util'

getLocalIPs()

然后我在执行：

npx ts-node __test__/util.test.ts 

的时候，报错：

npx ts-node  util.test.ts 
(node:61127) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
/Users/john/Desktop/projects/个人/nextjs/renderer/components/func/Traceroute/__test__/util.test.ts:1
import { getLocalIPs } from '../util';
^^^^^^

SyntaxError: Cannot use import statement outside a module
    at Object.compileFunction (node:vm:360:18)
    at wrapSafe (node:internal/modules/cjs/loader:1084:15)
    at Module._compile (node:internal/modules/cjs/loader:1119:27)
    at Module.m._compile (/Users/john/.npm/_npx/1bf7c3c15bf47d04/node_modules/ts-node/src/index.ts:1618:23)
    at Module._extensions..js (node:internal/modules/cjs/loader:1209:10)
    at Object.require.extensions.<computed> [as .ts] (/Users/john/.npm/_npx/1bf7c3c15bf47d04/node_modules/ts-node/src/index.ts:1621:12)
    at Module.load (node:internal/modules/cjs/loader:1033:32)
    at Function.Module._load (node:internal/modules/cjs/loader:868:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at phase4 (/Users/john/.npm/_npx/1bf7c3c15bf47d04/node_modules/ts-node/src/bin.ts:649:14)
mba:__test__ john$ npx ts-node  util.test.ts 
(node:61376) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
/Users/john/Desktop/projects/个人/nextjs/renderer/components/func/Traceroute/__test__/util.test.ts:1
export default {};
^^^^^^

SyntaxError: Unexpected token 'export'
    at Object.compileFunction (node:vm:360:18)
    at wrapSafe (node:internal/modules/cjs/loader:1084:15)
    at Module._compile (node:internal/modules/cjs/loader:1119:27)
    at Module.m._compile (/Users/john/.npm/_npx/1bf7c3c15bf47d04/node_modules/ts-node/src/index.ts:1618:23)
    at Module._extensions..js (node:internal/modules/cjs/loader:1209:10)
    at Object.require.extensions.<computed> [as .ts] (/Users/john/.npm/_npx/1bf7c3c15bf47d04/node_modules/ts-node/src/index.ts:1621:12)
    at Module.load (node:internal/modules/cjs/loader:1033:32)
    at Function.Module._load (node:internal/modules/cjs/loader:868:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at phase4 (/Users/john/.npm/_npx/1bf7c3c15bf47d04/node_modules/ts-node/src/bin.ts:649:14)

请问，这个报错的原因是什么呢？ 我已经在

文件：__test__/util.test.ts
添加了导出啊：

export default {} 

---

编辑1：我已经添加package.json

  "type": "module",

但是现在报错找不到util模块：

CustomError: Cannot find module '/Users/john/Desktop/projects/个人/nextjs/renderer/components/func/Traceroute/util' imported from /Users/john/Desktop/projects/个人/nextjs/renderer/components/func/Traceroute/__test__/util.test.ts

请问这种情况还有什么问题呢？

Answer 1

package.json里设置"type": "module":

"type": "module"

或者tsconfig.json配置：

{
  "compilerOptions": {
    "module": "ESNext"
  }
}

Answer 2

错误信息说的很清楚了：

Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.

改一下 package.json 里面的模式就好了。

ECMAScript Modules | Node.js v13.14.0 Documentation

Answer 3

ts-node 好久没维护了，配合现代 JS 麻烦一大堆，不如用 tsx 这个 cli