npm scripts设置环境变量，NODE_ENV

windows

set NODE_ENV=production

"scripts": {
    "build": "set NODE_ENV=production && rollup -c",
    "dev": "set NODE_ENV=development && rollup -wc",
}

linux & mac

export NODE_ENV=production

"scripts": {
    "build": "NODE_ENV=production rollup -c",
    "dev": "NODE_ENV=development rollup -wc",
}

跨平台设置

依赖 cross-env 模块

npm install -D cross-env

"scripts": {
    "build": "cross-env NODE_ENV=production rollup -c",
    "dev": "cross-env NODE_ENV=development rollup -wc",
}