发布一个npm包和命令行脚本

npm init

├── index.js
└── package.json

package.json
{
  "name": "2020ooxx",
  "version": "1.0.5",
  "description": "a demo package",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "mouday",
  "license": "ISC",
  "dependencies": {
  }
}

main：程序的入口文件，默认是index.js
devDependencies: 所依赖的开发环境下的包
dependencies：所依赖的线上环境下的包
repository: 代码存放地址（一般是git地址）
keywords：npm 包关键词

function hello() {
    console.log("hello");
}
// 导出模块
module.exports.hello = hello

# 检查npm源
npm config get registry
# 如过不是下面的地址需要设置
npm config set registry https://registry.npmjs.org
# 登录
npm adduser
# 发包
npm publish

npm i 2020ooxx

// 使用示例
// var ooxx = require("./index")
var ooxx = require("2020ooxx")
ooxx.hello();
// hello

#!/usr/bin/env node
console.log("hi");

{
  "bin": {
    "my-cli": "bin/index.js"
  }
}

$ npm link
$ my-cli
# hi