node.js - 如何导出具有多个静态方法的类

Question

我正在尝试在node.js中导出此类:

export class className {
  static method1(param1) {
    // do something
  }

  static method2(param1, param2) {
    // do something
  }
}

但是它在终端中出现以下错误:

complete_path.....\node_modules@babel\runtime\helpers\esm\classCallCheck.js:1 [2] (function (exports, require, module, __filename, __dirname) { export default function _classCallCheck(instance, Constructor) { [2]
^^^^^^ [2] [2] SyntaxError: Unexpected token export [2] at new Script (vm.js:83:7) [2] at createScript (vm.js:267:10) [2] at Object.runInThisContext (vm.js:319:10) [2] at Module._compile (internal/modules/cjs/loader.js:685:28) [2] at Object.Module._extensions..js (internal/modules/cjs/loader.js:733:10) [2] at Module.load (internal/modules/cjs/loader.js:620:32) [2]
at tryModuleLoad (internal/modules/cjs/loader.js:560:12) [2] at Function.Module._load (internal/modules/cjs/loader.js:552:3) [2]
at Module.require (internal/modules/cjs/loader.js:658:17) [2] at require (internal/modules/cjs/helpers.js:22:18) [2] [nodemon] app crashed - waiting for file changes before starting...

Answer 1

Node.js 尚不支持 export 关键字。您必须使用 exports 或 module.exports 。

在您的情况下，您应该使用module.exports:

module.exports = class className {
  static method1(param1) {
    // do something
  }

  static method2(param1, param2) {
    // do something
  }
}

有关 exports 和 module.exports 之间差异的更多信息，我建议您这样做 post .