与graphql开玩笑,“插件/预置文件不允许出口对象中,只有函数”
我试着写一些测试与JEST和graphql但我得到以下错误无论怎样我在我的.test.js文件(它在所有没有代码,即使)。
插件/预置文件不允许出口对象中,只有函数。在/Users/oscarstein/Documents/Projekt/Biljettsystem/ticketgo/system/node_modules/babel-preset-stage-2/lib/index.js
我.babelrc文件如下所示:
{
"presets": ["env", "stage-2"]
}
因此,错误使用预设“阶段2”来源于我,当我将其删除一切工作正常与测试。但由于我的应用程序与阶段2内置我想知道是否有同时使用“阶段2”并获得了JEST测试工作的任何解决方法吗?
的package.json文件
{
"name": "system",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "nodemon --exec babel-node index.js",
"test": "jest"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"apollo-server": "^2.1.0",
"apollo-server-express": "^2.1.0",
"bcrypt": "^3.0.2",
"body-parser": "^1.18.3",
"cors": "^2.8.5",
"dotenv": "^6.1.0",
"express": "^4.16.4",
"graphql": "^14.0.2",
"jest": "^24.0.0",
"jsonwebtoken": "^8.3.0",
"mysql2": "^1.6.4",
"nodemailer": "^4.6.8",
"nodemon": "^1.18.6",
"pg": "^7.6.0",
"sequelize": "^4.41.1",
"stripe": "^6.22.0"
},
"devDependencies": {
"@babel/core": "^7.2.2",
"babel-cli": "^6.26.0",
"babel-preset-env": "^1.7.0",
"babel-preset-stage-2": "^6.24.1"
}
}
回答如下:
巴贝尔7对以前版本不同的预设/插件依赖性。发表LoudNoises链接显示如何更新的依赖关系。在你的情况,npm i -D @babel/preset-env @babel/preset-stage-2
,然后更新您的.babelrc
:
{
"presets": ["@babel/env", "@babel/stage-2"]
}