NPM $npm_package_main
变量始终为空。
"main": "index.js"
设置 package.json 文件时"start": "node $npm_package_main"
npm start
问题:CLI 执行 Node REPL 模式,忽略 package.json 中的“main”变量。
预期行为:作为 node index.js
执行命令。
npm -v
= 7.3.0node -v
= v15.5.0npm run env | grep npm_package_name
= npm_package_name=app
npm run env | grep npm_package_main
= 空console.log('HELLO');
npm init
并按回车键回答所有问题package.json
文件并将以下行添加到“scripts”属性:
"start": "node $npm_package_main",
{
"name": "app",
"version": "1.0.0",
"description": "",
"main": "index.js",
"devDependencies": {},
"scripts": {
"start": "node $npm_package_main",
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC"
}
设置“开始”并运行“npm start”:
答案 0 :(得分:2)
来自 NPM 的官方回答:使用“node .”。这种行为没有官方原因,直到这篇文章。
根据文档,“main”属性包含您的应用在其他项目中用作模块时的入口点:https://docs.npmjs.com/cli/v7/configuring-npm/package-json#main
{
"name": "app",
"version": "1.0.0",
"description": "",
"devDependencies": {},
"config": {
"main": "index.js"
},
"scripts": {
"start": "node $npm_package_config_main",
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC"
}