Instructions used in the "node. JS Learning Note Eight" Package.json file

instruction	Description	Example
Name	The unique name of the package	"Name": "Camelot"
Preferglobal	Indicates that the module is more likely to be installed at the global scope	"Preferglobal": True
Version	The version of the module	"Version": 0.0.1
Author	Author of the Project	"Author": "[email protected]"
Description	Text description of the module (description)	"description": "A small feature"
Contributors	Other contributors to the module	"Contributors": [ "Name": "Zhang San", "Email": "[email protected]" ]
Bin	Binary files installed with the project	"Bin": { "Excalibur": "./bin/excalibur" }
Scripts	Start node is the parameter "scripts" that executes the console application	"Scripts": { "Start": "Node./bin/excalibur", "Test": "Echo Testing" }
Main	The main entry point of the application, which can be a binary or. js file	"Main": "./bin/excalibur"
Repository	Repository type and location of package	"Repository": { "Type": "Git", "Location": "Http://xxx.com/c.git" }
Keywords	Keywords that appear in NPM search	"keywords": ["AAA", "BBB"]
Dependencice	This module relies on modules and versions that you can use * and X wildcard characters	"Dependencies": { "Express": "Latest", "Connect": "2.x.x", "Cookies": "*" }
Engies	The version of node that this package can use	"Engies": {"node": ">=0.6"}

The advantage of using the Package.json file is that dependencies are automatically downloaded and installed for your node. JS application. You only need to create a Package.json file in the root directory and add the necessary dependencies.

For example, the following Package.json file requires the Express module as a dependent module:

{

"Name": "My_module",

"Version": "0.1.0",

"Dependencies": {

"Express": "Latest"

}

}

Then, run the following command from the root directory of the package, and the Express module will automatically install:

NPM Install

Note that NPM install does not specify any modules. This is because NPM will find the Package.json file by default. If you need additional modules later, you only need to modify the Package.json file, add the required modules to the dependent instructions, rerun the NPM install

Instructions used in the "node. JS Learning Note Eight" Package.json file