zoro-cli/lib/plugins/config-webpack/template/script/env.js

https://github.com/vuejs/vue-cli

const NODE_ENV_PRODUCTION = 'production'
const NODE_ENV_DEVELOPMENT = 'development'

const env = {
  getNodeEnv() {
    // 默认返回线上环境, 更安全
    return process.env.NODE_ENV || NODE_ENV_PRODUCTION
  },
  isProduction() {
    return env.getNodeEnv() === NODE_ENV_PRODUCTION
  },
  notProduction() {
    return !env.isProduction()
  },

  isDevelopment() {
    return env.getNodeEnv() === NODE_ENV_DEVELOPMENT
  },

  notDevelopment() {
    return !env.isDevelopment()
  },
}

module.exports = env