Npm cheat sheet

// creating npm package

npm init

// package.json

{
    "name": "package-json",
    "version": "1.0.0",
    "description": "package description",
    "email": "bippan1407@gmail.com",
    "url": "https://bippan.vercel.app/",
    "keywords": ["vue", "javascript"],
    "homepage": "The url to the project homepage.",
    "bugs": {
        "url": "https://github.com/owner/project/issues",
        "email": "project@hostname.com"
    },
    "license": "MIT",
    "funding": [
    {
      "type": "individual",
      "url": "http://example.com/donate"
    },
    "http://example.com/donateAlso",
    {
      "type": "patreon",
      "url": "https://www.patreon.com/my-account"
    }
  ],
  "files": ["src"],
  "main": "index.js",
  "browser": "index.js", // module to be used on client side
  "bin": {
    "myapp": "./cli.js" //Please make sure that your file(s) 
    // referenced in bin starts with #!/usr/bin/env node, 
    // otherwise the scripts are started without the node executable!
  },
  "man": ["./man/foo.1", "./man/foo.2"],
  "directories": { // used to define the structure of package
       "lib": "src/lib",
       "bin": "local/binaries",
       "jars": "java" 
   },
   "respository": {
        "type": "git",
        "url": "https://github.com/npm/cli.git",
        "directory": "packages/vue-dom" // If the package.json for your 
        // package is not in the root directory (for example if it 
        // is part of a monorepo), you can specify the directory in which it lives
   },
   "scripts": {
        "dev": "nodemon index.js",
   },
   "dependencies": {
    "foo": "1.0.0 - 2.9999.9999",
    "asd": "git+https://isaacs@github.com/npm/cli.git", // url as dependency
   },
   "devDependencies": {
    "nodemon": "~1.6.3"
   },
   "peerDependencies": { // In some cases, you want to express the compatibility
   // of your package with a host tool or library, while not necessarily
   // doing a require of this host. This is usually referred to as a plugin
    "boo-bar": "1.0.0"
   },
   "peerDependenciesMeta": {
    "soy-milk": {
      "optional": true // peer dependencies to be marked as optional
    }
  },
 "bundleDependencies": ["renderized", "super-streams"],
 "optionalDependencies" : {
    "foo-bar": 1.0.0
 },
  "overrides": {
    "foo": {
      ".": "1.0.0",
      "bar": "1.0.0"
    }
  },
  "engines": {
    "node": ">=0.10.3 <15",
    "npm": "~1.0.20"
  },
   "os": ["darwin", "linux"],
   "cpu": ["x64", "ia32"],
   "private": true, //  npm will refuse to publish it
    "workspaces": ["./packages/*"]
}

// npm update package verion
npm version patch

// publish npm package
npm publish

// To see what will be included in your package
npm pack --dry-run

// Login to a registry user account
npm login

// Installing local module using npm  
npm link
-- OR --
cd ./project-dir
npm link ../package-dir