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Mastering Node.js Modules and Packages

Module 1 - Introducing Modules

Understanding Modules [Chris]

  • What is a module?
  • How do I use a module?
  • What happens when I require a module?
  • Module pathing
    • Search behavior
  • What happens when I use the same module in other modules?
    • Instancing

Consuming your first module [Jeremy]

  • Load via require
  • Execute behavior

Creating your first module [Chris]

  • Create new .js file
  • Assign behaviors to module.exports
  • Load via require
  • Execute behaviors

Advanced Module Topics [Chris]

  • How does nodejs find a module?
  • How are circular references handled?

Module 2 - Module Design Patterns

Exports a Namespace [Jeremy]

Exports a Function [Chris]

Exports a Higher Order Function [Jeremy]

Exports a Constructor [Chris]

Exports a Singleton [Jeremy]

Extends a Global Object [Chris]

Applies a Monkey Patch [Jeremy]

Module 3 - Introducing to Packages

Understanding Packages [Chris]

  • What is a package?
  • Why would I create a package?
  • What is the appropriate granularity of a package?
  • How does an app know what packages are required?
  • How are packages shared?
  • What about my dependencies?
  • How is versioning handled?

Dissecting a Package [Jeremy]

  • What does a package consist of?
  • Recommended Structure
  • The essentials - index.js and package.json

Managing Packages [Jeremy]

  • Intalling required packages
  • Adding a public package
  • List packages
  • Removing a package
  • Updating a package
  • Adding a private package

Module 4 - Creating Custom Packages

Minimal package structure [Chris]

  • package.json
  • readme.md
  • LICENSE
  • index.js

Create your first package [Jeremy]

  • git init
  • npm init
  • add functionality to index.js
  • git commit

Advanced Package.json

  • index
  • keywords
  • homepage
  • bugs
  • contributors
  • files
  • main
  • bin
  • scripts
  • engines
  • private

Advanced Package Structure

  • .npmignore
  • server.js
  • bin
  • lib

Module 5 - Publishing Packages

Private [Chris]

  • GitHub link
  • npm link
  • npmjs private repo

Public [Jeremy]

  • npmjs
  • Create an account
  • npm publish

Module 6 - Performance and Other Considerations

Paths [Jeremy]

  • Long file paths in Windows
  • Flattening and shortening the node_modules folder

npmjs availability [Chris]

npm shrinkwrap [Chris]

Lazy loading a module [Chris]

Multiple modules in a package [Chris]