/HelloNodeJS

A node.js learning note

Primary LanguageJavaScriptMIT LicenseMIT

HelloNodeJS

A node.js learning note

Referencing: NodeJS Note

A Basic HTTP Server

Introduction of NPM

  • Using 'npm init' to initialize the project

    • creating it's 'package.json'

  • Using 'npm adduser' to add a user of Git

  • Using 'npm publish' to publish my module on the Git

  • Using 'npm' to install a module 'express', which is a most popular web server architecture.

$ npm install express #local install
$ npm install express -g #global install

  • Using 'npm list -g' to observe global modules.

  • The 'package.json' is under 'node_modules/express/package.json' including

    • name: module name
    • version: module version
    • description: module description
    • homepage: module homepage URL
    • author: module author name
    • contributors: other contributors' name
    • dependencies: dependencies of the module. They will be installed under the node_module automatically.
    • repository: where the module saving. Git (github) or SVN
    • main: program entry ('index.js' for default) of the module. require('moduleName') will load this file.
    • keywords: keywords of the module

  • Using 'npm uninstall express' to uninstall the module

    • but dependencies of it will not be uninstalled

  • Using 'npm update express' to update the module

  • Using 'npm search express' to search information of the module

Node.js REPL (Read Eval Print Loop)

  • Using 'node' to start the node console

Callback Function

Events