小编MR *_*R J的帖子

我和 Jest 一直有这个问题。Jest 抛出一个错误，指向 node_modules 内的依赖项。可能需要配置 jest 以支持此语法，因为它无法解析它。但我不确定配置是什么。

我尝试在 jest.config.ts 文件中添加transformIgnorePatterns，但没有成功，

    "node_modules/(?!(geotiff)/)"

任何帮助将不胜感激！

Details:

    /Users/Documents/Project/node_modules/quick-lru/index.js:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){export default class QuickLRU extends Map {
                                                                                      ^^^^^^

    SyntaxError: Unexpected token 'export'

      at Runtime.createScriptFromCode (node_modules/jest-cli/node_modules/jest-runtime/build/index.js:1796:14)
      at Object.<anonymous> (node_modules/geotiff/dist-module/source/blockedsource.js:1:1)

这是 jest.config.ts

// jest.config.ts
import type {Config} from "@jest/types";

const config : Config.InitialOptions = {
  "collectCoverageFrom": [
    "src/**/*.{js,jsx,ts,tsx}",
    "!**/*.d.ts"
  ],
  "setupFiles": [
    "<rootDir>/config/polyfills.js"
  ],
  "setupFilesAfterEnv": [
    "<rootDir>/src/setupTests.ts"
  ],
  "testMatch": [
    "<rootDir>/src/**/*.(test).{js,jsx,ts,tsx}",
    "<rootDir>/src/**/?(*.)(spec|test).{js,jsx,ts,tsx}"
  ],
  "testEnvironment": "node",
  "testEnvironmentOptions": {
    "url" :  "http://localhost"
  },
  "transform": {
    "^.+\\.(js|jsx|mjs)$": "<rootDir>/node_modules/babel-jest",
    "^.+\\.tsx?$": "<rootDir>/config/jest/typescriptTransform.js", …