[Node.js] npm init && npm install

浏览数：45 / 时间：2015年06月09日

npm init:

For create package.json file which will recode the dependence.

 

npm install:

You can also write like:

npm i

This is a shortcut way to write npm install.

 

For example. we want to install undersocre.js

npm install -S underscore

The way ‘-S‘ works is it will write down the dependence into the package.json we just create:

{
  "name": "commonJSBroswerfiy",
  "version": "0.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "MIT",
  "dependencies": {
    "underscore": "^1.7.0"
  }
}

 

dev-dependence:

npm install -D bower

‘-D‘ is to add dependence into devdependence which only available for the co-work.

{
  "name": "commonJSBroswerfiy",
  "version": "0.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "MIT",
  "dependencies": {
    "underscore": "^1.7.0"
  },
  "devDependencies": {
    "bower": "^1.3.12"
  }
}

 

If we have package.json, other people download our project and they just need to run:

npm i

They can install all the dependence.

 

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