babel-plugin-dotenv-import：使用import语句加载环境变量

babel-plugin-dotenv-import 使用import语句加载环境变量。 安装 $ npm install babel-plugin-dotenv-import 用法 .babelrc { " plugins " : [ [ " dotenv-import " , { " moduleName " : " @env " , " path " : " .env " , " blacklist " : null , " whitelist " : null , " safe " : false , " allowUndefined " : false }] ] } .env API_URL =https://api.example.org API_TOKEN = 在users.js中 import { API_URL , API_TOKEN } from "@env" fetch ( ` ${ API_URL } /users` , { headers : {